I recently discovered that my RSA Keys are gone (used the app from the Market for confirmation). A little while ago, I lost my Evo, I got a replacement, and the lost unit was found and returned to me later. It supposedly is blocked from going back on the network, so I'm not going to try and put it back on my account, but I checked last night and 4G connected w/out a problem. So I'm wondering if I could Amon-Ra Nandroid the phone w/the keys, and restore that to the new phone w/out the keys? Does it seem at all plausible, or is there a simpler way to transfer the keys from one unit to the other? I've been reading a lot of the 4G threads, and it seems like it is a possibility, I'm just unsure as to how exactly I should proceed w/out horking things up more.
Is it a possibility to make backups of the keys as per step 6a of this thread, edit the MAC and transfer them over? TIA for any guidance.
take the wimax.img from the phone with the good keys (bad esn) and put it on the sdcard of the phone with the bad keys (good esn) and then in the good phone open a terminal emulator and type su then type flash_image wimax /sdcard/wimax.img
feel free to make a backup of the bad wimax partition first just to be safe
A lot of what I read indicates that the keys are specific to the MAC address. Is this correct?
whats77inaname said:
A lot of what I read indicates that the keys are specific to the MAC address. Is this correct?
Click to expand...
Click to collapse
Ok, I can't say one way or the other if you can trade out your RSA keys between phones, but I wanted to tell you that sprint can unblock or unrestrict your old phone if you request them to. I lost my phone a few months ago and had to make a claim, I went through the whole process from the police report to getting my new replacement. The phone was blocked from the network a few weeks after I got the new phone - I found the old one, I called sprint and the police to let them know I had found the phone. Sprint asked me if I wanted the lock taken off it and now its the phone my sister has...works just fine, so if they tell you they cant remove the lock - tell the Rep you want to speak to a manager... now, there MAY be a limit on the days for the phone to be found before the lock becomes permanent i.e if the lock isnt lifted in 30 days or 60 days it becomes perm... but i found my phone in 3 weeks...
My understanding is you can't use another phones keys. I don't have any experience first hand, but there was a thread about this a couple days ago and everyone said the keys are phone specific and there is no way to switch.
+1
I lost my keys and researched for days. Wimax keys are non-transferable :/
Bamba1260 said:
My understanding is you can't use another phones keys. I don't have any experience first hand, but there was a thread about this a couple days ago and everyone said the keys are phone specific and there is no way to switch.
Click to expand...
Click to collapse
Well, I did manage to use the aforementioned method from post #2 and got the key transferred. The WiMAX RSA Key Checker now says that the RSA key is present, so that's good. I've been researching this issue for the past couples days, there's a lot of info to process.
Edit: In the interim, I checked out this thread. I ran "fastboot oem wimaxrmac" and it didn't error out, it shows the IP address from the donor phone. It appears that the issue for everyone is that yes, the key is specific to the MAC, so the fact that the recipient phone is showing both MAC and key from the donor makes me think this might work after all.
Well, I can confirm that this method works. I am able to connect and sustain connection on 4G.
The RSA keys, mac address, username and password are all stored in the wimax image. So transferring it from one phone to another should work.
Good job, I think a lot of people will be interested in hearing about that
So a little off topic. I would like to use my laptops wimax proset 6250 to connect as its antenna seems to pickup better than the evo. Anyway to extract the keys and password so I can try to set them in as replacements for the ones in my laptop?
EVO Sent
is your proset rooted?
Sweet, I'm gonna sell a copy of my wimax image to someone who needs some RSA keys lol, I don't use 4G anyway haha
Related
Long time reader, first time poster...
Prologue,
I appreciate all the great info on the site and have visited the same threads so many times, my google chrome shortcut windows are all xda pages
My first evo was purchased the second day available to public and i initially took the plunge into the world of dev and rooting because I wanted free wifi tethering.... let me say... its a slippery slope
Anyway, I cooked my wimax keys and oemMAC a loooong time ago on my evo.
Tried everything, fastboot mac fix, stock rom with su_radio, HTC SPRINT RUU, blah blah blah.
I did fix the turn on/searching/failed/turn off/turn on loop and corrected my MAC but RSA keys were toast
Followed ALL threads to no avail... I do not have access to another EVO so I finally bit the bullet and took it to the sprint store and got a free replacement (took 4 days).
SO, here I am with a new (refurb) evo that is 100% stock and working. I did a logcat to check out what was going on with a working 4g and when I turned off the radio, I keep getting this:
( 102): <DC> Try to establish a connection to DC server.
E/Wimax ( 102): <DC CONNECT> IO error: msg='/127.0.0.1:7771 - Connection refu
sed'
It just repeats, and repeats and repeats... Even though the 4gradio is off. The message didnt show up in the logcat until I turned the 4g radio on and then off.
Yes, I know... it has been discussed before but the "problem" was being reported by members with non-stock phones...
OFF TOPIC, but still seeking guidance:
Also, I want to get back on the root-train and want to make sure I dont have the 4g rsa key problems. Where do I start to make sure I can backup my wimax part?
This has been discussed and the verdict is: This is normal behavior, maybe not wanted, but normal on these phones; and does not negatively impact battery life. Carry on.
sfef84 said:
OFF TOPIC, but still seeking guidance:
Also, I want to get back on the root-train and want to make sure I dont have the 4g rsa key problems. Where do I start to make sure I can backup my wimax part?
Click to expand...
Click to collapse
Amon_RA 1.8.0 Nandroid backs up your WIMAX partition
^that being said... maybe you could make this a sticky:
IF YOUR RSA KEYS ARE GONE... GET A NEW PHONE, fixing MAC does nothing...
(assuming you dont have access to another Evo)
....would have saved myself about 2 weeks of screwing around
mgriffin13 said:
Amon_RA 1.8.0 Nandroid backs up your WIMAX partition
Click to expand...
Click to collapse
I have read about the Amon_RA method and it doesn't say anything specifically about the wimax backup partition. Do you have to do anything special for the wimax backup or is it a "bonus" feature?
sfef84 said:
I have read about the Amon_RA method and it doesn't say anything specifically about the wimax backup partition. Do you have to do anything special for the wimax backup or is it a "bonus" feature?
Click to expand...
Click to collapse
It does it automatically, but just beware if you ever have to get a replacement phone and want to restore your backup. You will have to delete the Wimax.img and edit the md5 file or it will overwrite your brand new partition with one from your old phone.
long time reader doesn't already know this??
--edit--
sfef84 said:
^that being said... maybe you could make this a sticky:
IF YOUR RSA KEYS ARE GONE... GET A NEW PHONE, fixing MAC does nothing...
(assuming you dont have access to another Evo)
....would have saved myself about 2 weeks of screwing around
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=8357508&postcount=355
sfef84 said:
^that being said... maybe you could make this a sticky:
IF YOUR RSA KEYS ARE GONE... GET A NEW PHONE, fixing MAC does nothing...
(assuming you dont have access to another Evo)
....would have saved myself about 2 weeks of screwing around
Click to expand...
Click to collapse
is there anyway to see if you still have your rsa keys if you have NEVER connected to wimax? i do not live in a 4g area but if i visit one, or if it finally comes to me, i would like it to work. also, if i ever find out my wimax actually doesnt work, could i just take it in and get it replaced assuming it unroot properly?
Go into shell and type
grep RSA /dev/mtd/mtd0
This is what mine said with broken keys:
grep RSA /dev/mtd/mtd0
RSA-REQUEST
RSA-REPLY
RSA-REJECT
RSA-ACK
RSA-1024
RSA-REQUEST
RSA-REPLY
RSA-REJECT
RSA-ACK
RSA-1024
RSA
ReRSA
RSA requests
RSA replies
Check your keys, if they are there and your MAC matches, you should be good to go.
hockey4life0099 said:
is there anyway to see if you still have your rsa keys if you have NEVER connected to wimax? i do not live in a 4g area but if i visit one, or if it finally comes to me, i would like it to work. also, if i ever find out my wimax actually doesnt work, could i just take it in and get it replaced assuming it unroot properly?
Click to expand...
Click to collapse
Run the command like the op posted. You should see something like -----BEGIN RSA KEY----- or something similar if you still have your keys.
I also found another thread around here which has a command that you can use to backup your wimax partition. You can do that and save it in a safe place (or nandroid using anon ra recovery). That partition contains your keys as well. I backed it up, opened it in a hex editor and saw those keys in there.
Sorry I can't post the link, the xda app doesn't let me save draft so I couldn't search for that other thread while typing this. The title of that head says "fix your broken 4g here" or something of that sort.
Sent from my Evo using XDA App
Over the past 2 weeks, I have tried to research the answers to my questions, but could barely find anything on this particular subject. So it's my first time posting to this forum, and my situation is a little embarrassing. I have had my htc evo for about 1 1/2 years, and I finally decided to root it 2 weeks ago. I've been with sprint for 6 years, and am on the unlimited data family plan, as well as the sprint hotspot feature on my phone, which I pay them 30 dollars additionally every month. I pretty much exclusively use my phone for all tasks and browsing and downloading etc, so I didn't get this feature for the "wireless tethering" , I actually got it so I could discontinue my home wireless internet through cox communications, so my phone is my only wifi source at home. I almost never use an actual pc!
I rooted my evo for 2 reasons mainly: 1) I am sort of an app addict, and I needed to free some space on my phone. I especially love using different keyboards ( which are often very large files). 2) I love customizing my home screens, but want to be able to use icons from icon packs such as crazy home's, with ADW launcher etc. I did a factory data reset on my phone before rooting, and I think I backed up all my apps to my laptop... but I wanted to start fresh anyway, so have not bothered to restore them from my pc to my phone.
Two days before I rooted my phone, Sprint temporarily disconnected my account do to Past due payment. I'm not going to get into the details, But I can't afford to pay off my balance until May. It is what it is, I'm not whining or complaining, times are a little tough for me financially and i just have to deal with not being able to make calls or text for a month. Lol, it's harder than I thought! It's pathetic how dependent my family has become on cell phones and texting for communication. We don't even have a land line. Just to give you a quick background, I didn't even know what sd card was, or a usb cable, before I got my htc evo. I'm not tech savvy at all, But when I first learned what this phone could do I was hooked. I have a laptop at home, But I never use it because a few keys on the keyboard are broken. As a matter of fact, The first time I actually plugged my phone into my pc, was when I rooted it!. I used the unrevoked 3 method, which was fairly straightforward. Because I have no data access right now, I was unable to update my profile etc. And of course, without data access I cannot take advantage of the free wireless tether.
My main question is, did I make a mistake in rooting my phone while not having network access? Right now, if I'm not in a wifi area I basically can't do much with my phone. I downloaded a few apps that allow free calling over a wireless connection, and facebook chat,etc... so I can communicate with my family as long as I'm in a wifi zone. But, I have been afraid to do anything else with my phone because I wanted to do a little research on this. I know some of you are probably thinking, why didn't she research it before she rooted? Lol, I would be saying the same thing! I didn't even think about it until I was done routing and it told me to update my profile. Since then I've been a little freaked. I'm hoping I didn't Make a bad choice. I just wanted to the able to access a few icon packs lol.
Is there anything I should know, or have done differently? Or does it make no difference at all? I guess basically what I'm getting at, is can I go ahead and reset my phone again and start flashing roms, just like I would if I had network access?
Again, please forgive me if I sound ignorant in this matter... because I am. Any advice will be much appreciated.
You can start flashing roms as normal. You didn't make a bad choice rooting without data access, because whether you do or don't doesn't make a different. i would say just make a back up of your apps in titanium backup, then backup your rom before flashing.
And you can pm me if you need any help.
Post neglected...double post.
I would say to reflash ur rom but it might not work try to go back to the sense rom if u have it backed up once u do that update everything under ur settings nd updates nd if it still don't work the only other thing I know u can do is unroot it and take it to.sprint so thay can look it
Sent from my PC36100 using XDA Premium App
Kriskat74 said:
Over the past 2 weeks, I have tried to research the answers to my questions, but could barely find anything on this particular subject. So it's my first time posting to this forum, and my situation is a little embarrassing. I have had my htc evo for about 1 1/2 years, and I finally decided to root it 2 weeks ago. I've been with sprint for 6 years, and am on the unlimited data family plan, as well as the sprint hotspot feature on my phone, which I pay them 30 dollars additionally every month. I pretty much exclusively use my phone for all tasks and browsing and downloading etc, so I didn't get this feature for the "wireless tethering" , I actually got it so I could discontinue my home wireless internet through cox communications, so my phone is my only wifi source at home. I almost never use an actual pc!
I rooted my evo for 2 reasons mainly: 1) I am sort of an app addict, and I needed to free some space on my phone. I especially love using different keyboards ( which are often very large files). 2) I love customizing my home screens, but want to be able to use icons from icon packs such as crazy home's, with ADW launcher etc. I did a factory data reset on my phone before rooting, and I think I backed up all my apps to my laptop... but I wanted to start fresh anyway, so have not bothered to restore them from my pc to my phone.
Two days before I rooted my phone, Sprint temporarily disconnected my account do to Past due payment. I'm not going to get into the details, But I can't afford to pay off my balance until May. It is what it is, I'm not whining or complaining, times are a little tough for me financially and i just have to deal with not being able to make calls or text for a month. Lol, it's harder than I thought! It's pathetic how dependent my family has become on cell phones and texting for communication. We don't even have a land line. Just to give you a quick background, I didn't even know what sd card was, or a usb cable, before I got my htc evo. I'm not tech savvy at all, But when I first learned what this phone could do I was hooked. I have a laptop at home, But I never use it because a few keys on the keyboard are broken. As a matter of fact, The first time I actually plugged my phone into my pc, was when I rooted it!. I used the unrevoked 3 method, which was fairly straightforward. Because I have no data access right now, I was unable to update my profile etc. And of course, without data access I cannot take advantage of the free wireless tether.
My main question is, did I make a mistake in rooting my phone while not having network access? Right now, if I'm not in a wifi area I basically can't do much with my phone. I downloaded a few apps that allow free calling over a wireless connection, and facebook chat,etc... so I can communicate with my family as long as I'm in a wifi zone. But, I have been afraid to do anything else with my phone because I wanted to do a little research on this. I know some of you are probably thinking, why didn't she research it before she rooted? Lol, I would be saying the same thing! I didn't even think about it until I was done routing and it told me to update my profile. Since then I've been a little freaked. I'm hoping I didn't Make a bad choice. I just wanted to the able to access a few icon packs lol.
Is there anything I should know, or have done differently? Or does it make no difference at all? I guess basically what I'm getting at, is can I go ahead and reset my phone again and start flashing roms, just like I would if I had network access?
Again, please forgive me if I sound ignorant in this matter... because I am. Any advice will be much appreciated.
Click to expand...
Click to collapse
Not being able to update the profile won't make any difference at all, if you have no data connection to begin with. Once you're able to get things situated, and you need to get your phone activated again, you'll just need to make sure you're on a Sense rom before you activate it again. No worries, you can flash away all you want, with or without a data connection.
Also, how have you had your Evo for 1 1/2 years!? They were released June 4th last year!
Ha ha really? I feel like I've had this evo for years.. since the day I got it I've been like a kid in a candy store! Thanks for the reassurance everyone. Unfortunately, I've just encountered the problem with the SD card not being recognized by my phone or my PC. According to my research, I'm supposed to find this file on my SD card under android. secure and delete it? But my PC isn't recognizing my card, and my apps that are on SD are seen by my phone. I get a force close when attempting to unmount SD. My market apps won't install or uninstall.... ugh. Like an idiot,I never did a Nandroid backup. I really don't care about losing my app backups though,I just don't want to mess up my phone. All this information is overwhelming me... Nandroid this, titanium that, recovery boot, drivers, and on and on.... so much advice is outdated I don't know which to follow. I'm a dummy! That's why I need my smartphone to help me out lol.... how do I fix this?
Eek....I just saw a gigantic spider.... creepy..
in a nutshell, you can do anything with your phone, without data access, or service.
I rooted and flashed the ROM I did for my old Moment, after it had been turned off so I could sell it.
Now that you are rooted, I uses Titanium backup for all my apps/data. I only backup actually apps, not HTC stuff, etc, or anything that comes with the ROM you flash.
You can tell this becasue the apps are in white lettering in the Backup menu.
At least they are on mine, and I use all default settings.
rooted without data access
Thanks everyone...I fixed my problem with my sd card, turns out mine had gotten corrupted so I will deal with that later.I just put in my other card and Im back in business....lost all my personal info though. Thats the least of my worries. Someone said I can do anything on my phone without data service, but they must mean only when I am in Wifi zone right ? See, unfortunately, I dont live in a populated area. I have no wifi access at home and there are hardly any free wifi spots in town. At home, I can see that there are wifi networks around (linkys via cox communications), but they are locked. Oh, thats another question i had....why do people lock their wifi? I never did, and I have no problem letting others access mine when they need it. Should I? If so, why?I am so sorry if I sound clueless again, but Im learning a little more every day thanks to people like you!
So as far as communication, Im out of luck. A couple months ago,I had an issue connecting to the network while i was at home, but i just turned on my sprint hotspot and i had instant network access so i couldnt call or text, but i was able to get a hold of my daughter on facebook lol. How did my phone do that? I dont get it. I am going to a couple of those prepaid phones tomorrow so we can make calls in the meantime.
As far as navigation, any tips on how to find any apps that dont need network access that work well? I found a couple, but they seem so complicated to set up. And, I tried Nettalk for making calls over wifi but it only works sometimes. I read about apps that offer free sms and calls over wifi but I couldnt find one that was stable.
I cant wait to get my service restored..I didnt realize how much I depended on it. I still havent flashed any ROMS...Im a little nervous. I still dont totally understand what is different about my evo now tthat its rooted, but i plan to educate myself once I get full access to wifi again.
Any advice/tips is very much appreciated. Thanks again for this useful forum.
TL;DR - There IS a WiMAX RSA key somewhere on our device and it CAN be lost. It would be great if we could track it down and figure out how to back it up.
Here's the story. I had to send my E4GT in to Samsung for a new logic board, and about a week after I got it back, WiMAX stopped working. I discovered that my WiMAX MAC address had reset to 00:00:00:00:00:00, and all the other settings (MRU, REALM, etc) had been cleared, as well. I was able to reprogram the MAC address to the one on the sticker, and the other settings to match my NS4G. I still couldn't connect, so I did a ##786# reset, and re-activated; still no go. I was getting desperate, so I called Sprint. The support agent didn't know jack about WiMAX, but she updated my profile, still no-go. I called Samsung, too, but they claimed there was not way the repair process could have affected my WiMAX. I have used the WimaxLineTest application to verify that Authentication fails, so I have to believe that there is an authentication RSA key somewhere in flash, which was lost when my WiMAX settings got reset.
I'm not looking for a solution to my problem, as my local Sprint store is getting me a replacement. I do think that it would benefit the community, though, if we could figure out where the RSA key is stored so we can find a way to back it up. Thoughts?
Ok... I'm ready to ask for help... I'm new enough to this that I'm willing to say please go easy on me.
So Im working with a rooted Epic 4G Touch. It's the EL29 root that seems highly recommended, nothing special, no special considerations there.
So moving along..
I accessed the efs with qpst to pull 0 and 1943. Locked, but visible.
Continued with the open sesame door instruction, rebooted, and tried to re-access the efs through the same manner (qpst efs explorer). Nothing. EFS explorer can't see, won't find it, nothing. Completely hidden. Including the open sesame door folder. It (the efs) hasn't been deleted. The phone still accesses all the normal information (Phone reports a normal imei, bluetooth mac, wireless mac, etc). But to save my life, I personally cannot access this directory to even see, let alone pull these two files for any type of modification. Nothing. I tried root file managers including Root Explorer as well in following other guides, nothing. DFS can access part of the hidden efs that I cant see with EFS explorer, (basically anything that wasn't locked before the directory became completely hidden - including the created open sesame door folder, [deleting it does not fix the issue], but nothing that was locked - such as the 0 and 1943 files I was seeking in the first place - is visible to DFS), however, DFS can access the information through NV Read range and the information is good, (that is, its accurate from the information I have for the device) (but its just the demo so it can't be edited directly, but it does tell me I suppose that the information is there and valid still?).
Anyway, so this is basically what's going on. I'm just trying to put this phone on metro, it seemed fairly straightforward.
I suppose the core questions are
1.) WHAT THE $&#@ happened to the efs, and is there something I can do to.. I guess normalize this? Any answers as to what, why, or recourse are humbly appreciated.
2.) Is there another route to accomplishing what I'm trying to do? I was contemplating reading the information from DFS (read range 0-1 and 1943-1944 which spit out item 0 and item 1943 respectively) saving these and editing them manually with a hex editor and then importing them back in the same way through DFS, since you can save them, but I don't know if the import is going to work, or even if that particular procedure will work. Is there another another method someone is willing to point out? I feel like Im drastically overcomplicating this...
I've been at this for awhile now... Any and all help is most graciously appreciated.
2.) Is there a simpler route to accomplish what I'm trying to do? Like shouldn't I be able to use CDMA workshop
Other questions that may be asked...
Do I have an efs backup... A proper backup? I'm going to say no. Not with all the content that I know is in there, though I have been able to pull what I can see (which is everything that dfs can see minus the locked items dfs won't show me -- which is more than what root explorer can see... if that makes any sense at all...)
You cannot try the open sesame door method on this phone. I think it is only used on htc phones. What you are trying to accomplish is not something that can be talked about due to it not being legal in some cases. The best way to do it is having the epic touch's esn added to metro then flash for data and mms.. There is a easy method to do it you just have to search
chivasjose09 said:
You cannot try the open sesame door method on this phone. I think it is only used on htc phones. What you are trying to accomplish is not something that can be talked about due to it not being legal in some cases. The best way to do it is having the epic touch's esn added to metro then flash for data and mms.. There is a easy method to do it you just have to search
Click to expand...
Click to collapse
Some cases unless I'm mistaken being the operative phrase. If I've honestly broken a rule already I will withdraw completely with my apologies. But if not, I am very much perplexed. Yes, I did eventually figure out that the open sesame method was not appropriate for this device. The metroflash method you speak of is ending/ended. This is no longer an option in most cases.
Ok well for informational purposes ---
The aforementioned importing of the two nv ranges was successful. For the life of me I can't figure out why the efs was invisible for so long and through so much effort and despite many attempts to read it, but after the procedure, it is visible again.
Any explanations for educational purposes are welcome.
I don't think you've broken a rule so don't worry. It is sometimes hard to talk about it. Most people use the terms donor phone or esn repair. The metroflash is ending or ended it is still not known. I live here in Dallas and stores are still flashing phones to metro. It is still possible you just need to look around to find the resources available. I forgot to mention that i have my e4gt to metro. Just pm me and ill direct you to the places you need.
chivasjose09 said:
I don't think you've broken a rule so don't worry. It is sometimes hard to talk about it. Most people use the terms donor phone or esn repair. The metroflash is ending or ended it is still not known. I live here in Dallas and stores are still flashing phones to metro. It is still possible you just need to look around to find the resources available. I forgot to mention that i have my e4gt to metro. Just pm me and ill direct you to the places you need.
Click to expand...
Click to collapse
Chivas thank you ~ I was attempting to keep the post free from such terms. I did actually get the phone up on metro using the aforementioned process using the proposed method I had outlined, (I was actually surprised the demo was able to do this because NOTHING could read those items once they disappeared on me, and then as soon as I finally did successfully edit them everything, including EFS explorer could read them again. I was very confused as to what had happened and am still interest if anyone has a proposed explanation). I appreciate your consideration. If perhaps you can direct me to a decent mms guide you can confirm working I would appreciate it because I dont think I've been able to send and even receiving seems highly dodgy at best. I would ask you if you could recommend a prl as there seems to be some contention on this subject as well, but as you're in Dallas I would assume I need to play with them to find the best one. I'm working on the GPS as well, but believe I've found the correct method as outlined here: http://forum.xda-developers.com/showthread.php?t=1750366.
What would also be nice some additional information with regard to the following:
The device is connected to metro with a metro prl however, when in service going to about phone - status - mobile network shows "Sprint"
And similar with the drop down notification drawer (IM using the new senzation rom at time of writing fyi though unless I am attempting to flash), it also reads either "not in service" if searching for signal, or "Sprint". more information
Thank you again, all consideration is appreciated
@ChemicalM How did you get to open EFS and NV items folder?
Wow... we're goin back pretty far here but if I remember correctly, DFS was successfully able to read the two NV ranges and after new ones were successfully imported the folders simply appeared, I don't believe I ever truly figured out why, but by that point the work was done so I didn't necessarily need it anymore.
SOLVED! - see post #7
This SM-N910V is rooted and had 3g but apparently I lost that when mucking around with things trying to get 4g. I've got other phones like a Galaxy S5 and Galaxy Note 5 both Verizon models that get 4g or 3g fine in this same location.
First odd thing I noticed on the Note 4 was a setting that popped up seemingly by itself while in 'More Networks' and 'Mobile Networks' that showed VZWInternet with a circle by that which was not yet checked so I tapped that and it turned green in the circle. I have never been able to see that option again. I don't think this caused the problem though. I've looked at apns-conf.xml in the /system/etc folder and can't see a problem there. I also tried replacing that with another one that is supposed to fix LTE mode. No luck so I put back the original. I wiped cache and reflashed a backup with TWRP which had been working on 3G but that didn't help - no 3g even. I did not wipe Dalvik/ART cache. I had been messing around in the 'Service Mode' menu with a bunch of different settings in an attempt to get 4g working but I'm fairly certain I got everything set back the way it was before I started. I noticed that one setting I had left different in the Service menu did not change back after flashing a restore with TWRP (full restore - all boxes checked). The one setting I left changed was the under the 'AS' protocol menu where I changed the Release version control to "LTE 3GPP REL 9" from LTE 3GPP REL 10". I know enough to be dangerous
Open to any suggestions - am wondering at the moment if I should have wiped the Dalvik/ART cache before the whole TWRP restore? At this point I'd be happy just to get 3g working again.
I also tried Dr. Ketan's LTE Enable. That didn't fix anything. Although I see MNC and MCC numbers in the apns-conf.xml file when I look at the SIM with a SIM info App I just see blanks in those spots on the SIM. Not sure if that's relevant - just giving as much info as I can here.
Did another restore with TWRP after wiping Dalvik/ART cache but that didn't fix it either. Strong cell signal but no 3G or 4G.
More info - I put the SIM card in another phone and it sees 3G at least.
It seems the "lost 3g or 4g" problem is very common and it seems I've looked through dozens of message threads here but I'm not finding any solutions. I'm looking at flashing the 'ltefix.zip' from this thread but it seemed to be for a custom ROM and I've just got the stock - more or less - 5.1.1.
Hmmm.... Been at this all day reading here, searching, trying everything but still no Mobile Data. Is this as elusive as rooting a Verizon Note 5? LOL - it was working at least on 3G. I'll take hints or even wild guesses at this point.
Okay - it finally flashed on me to do a restore of my EFS. Oddly I had done a full restore with TWRP which include EFS but that didn't fix the problem. That TWRP backup was done the same day I did an EFS backup using Dr. Ketan's IMEI tool for the Note 4. When I used the IMEI tool to restore the EFS backup I then had the 3G come back on. This is a 4G SIM so I still don't know why I'm not getting 4G but at least I got 3G back. I did have a hiccup using this IMEI tool which initially caused the phone to repeatedly shutdown after a minute or so and could not be restarted without pulling the battery. I believe it had to do with the 'Restore' button needing to be held down a certain amount of time instead of just a tap. I probably held, released too soon then held longer which I suspect caused a partial or damaged EFS restore. Be careful in how you use this tool or you may end up in that situation. I had to work very fast after a bootup to get it properly restored. After that it was stable again and had 3G.
Now if only I could figure out what it takes to get 4G.
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I wasn't getting 4G for the longest time, checked the PRL in settings on my GFs phone and noticed my PRL ver was like 50 thousand something while hers was 15518. Got a new Sim card and all my issues went away, PSA do not use *228 programming...EVER.
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acslam said:
Update/more info - I've continued to try and figure this out to no avail, although I got fed up with stock unrooted 5.1 and am now running modestrom v9 with a CQI2 base. And all of that install went fine, except for 4g of course.
I think this is worth mentioning as it might have something to do with the situation:
Way back in the beginning, I had gone through the entire unlock/root process, and everything actually worked fine the first time. This was right about the time the unlock became available, I bought the phone based specifically on that being possible, and got a brand new one at that time. Well, it was awesome for about 2 weeks, fully functional 4g and everything.
I had a very particular goal - I wanted this phone totally unlocked, but I was also very interested in the advanced/wifi calling that was supposedly coming out at that time - I was planning to move to a place with no vzw service and would be reliant on wifi for calls at home. Verizon wasn't clear about the fact that the wifi calling feature wasn't coming until MM, and this was before MM was released, so I was running a completely functional, 5.1.1 rom. I believe it was jasmine. So, under the impression that "advanced calling" would have given me wifi calling, I tried to enable it.
I cant recall if it was immediately, or a few hours after, but this is when the phone lost 4g for the first time. I immediately tried to deactivate the advanced calling feature on my line, but it didn't help. And nothing I could do would bring back 4g. I tried everything possible, and ultimately gave up and threw the phone in a drawer and went back to my note 3.
Fast forward several months, and my note 3 began to have issues with call audio, forcing me to use the 3g-only note 4 in order to actually handle day to day business. Again, I went through the processes of trying to fix 4g, with no success. Now by this time, MM had been released, I believe PD1 was the current firmware. I figured at this point it was time to just odin back to 5.1.1 and start everything over.
So I odin flashed the phone, and it booted into 5.1.1......with no 4g. Again I went through all the things I found here, no improvement. Finally, one day when the phone was bugging me about an OTA, I figured "what can it hurt at this point, its nearly useless without 4g anyhow."
And low and behold, the OTA update from verizon booted up and immediately jumped to 4g.
Now I felt I had a chance, a method that I'd finally proven could fix the problem. I left the phone in that state for a couple weeks, just to prove that it was holding. No problems during this time.
But I got sick of no root, and so I figured it was time to try and go through the steps again. And again, I lost the 4g connection. No big deal, just odin back to 5.1.1 and let it OTA like last time......
Except this time it didn't work. So I odin flashed back to 5.1 again, and let it try to OTA, again. I let the phone continually try to OTA all the way up to current, and flashed back to 5.1 at least 3 times to repeat the process in hopes it might fix something. No change at all. At this point I actually began to try and see if possibly Kies could help me here - maybe there was something related to the phones EFS? Which I don't understand very well btw - it was only through reading this thread that I began to research EFS and its significance. I also attempted to use some of the checkboxes in odin - the ones to erase all NAND and to clear EFS and rebuild it. Neither option made any difference. So I figured next logical step was to start playing around in service mode, which would require unlocking/rooting again......
And thats how I landed here. About an hour ago I got sick of the stock 5.1.1 and went through the whole root/unlock process and I'm currently running modestrom on CQI2 or whatever was just most recently posted. Every other part of the phone seems normal, but still no 4g. I can actually see the radio making an attempt to connect in the service mode - but I don't understand service mode menus well enough to interpret where the actual problem is. Upon boot the phone tries about 3 or 4 times to get an lte signal, during this time there is simply bars of signal, NO data indicator of any kind. Eventually, it gets frustrated and gives up, connecting to 3g and staying there. I realize now that when 3g drops, which is roughly every 10 minutes or so, its actually the phone attempting to establish LTE again. But still, I cannot make any sense of this.
Apologies for the giant post - I'm trying to put anything that could possibly be relevant info into one place here.
So........ anyone got any suggestions?
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PM sent. Just to share a little of that here I think the first thing I would do is tell VZ you suspect your SIM card is bad and have them put in another one. Tell them it fell out when changing a battery, the dog ate it and by the time it came out you suspect it wasn't quite right anymore - LOL. I do think SIM's flake out sometimes and I know a bad one can prevent 4G from working. If you ever had an EFS backup from anything try restoring ONLY the EFS (if you use TWRP). No guarantees that will fix it but my best guesses at this point. Good luck.
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I supect Verizon's doing this ...
acslam said:
I got a used stock note 4 to try and compare and see what I could be missing here....
Tried new sim card at least twice, unfortunately no dice, and the same card pops right into the spare note 4 and it wakes up on 4g just fine.......
EFS is something I probably should have been quick enough to dig in deeper on before this, as I don't have any backup of it....... however, I'm not seeing any other symptoms, I can see my imei fine, and every other function works. Is it possible that corrupted EFS can cause the loss of just one type of connection like that?
For giggles I tried a friends att sim, and no lte on that either.
Playing with the app LTE discovery, I can tell that the phone sees 4 different LTE towers just fine, showing db numbers exactly in line with the stock note 4 sitting right next to it, theres just something there under the surface thats stopping them from hooking up...... it stops trying after a couple minutes, rejects them all and connects to 3g.
I'm convinced its some kind of software thing, but I can't tell exactly where the failure is happening.....
I also odin flashed it back to stock bpa1, and still no dice. Is there a means to make an EFS backup without root? I want to see what happens if I try unlocking the other note 4 as well, but this time I want to have the backups......
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I've been running on Emotion 7.1.1 for months with NO issues (well, some minor stuff, you know....)
Suddenly, two weeks ago I got a notice from Google that I had to sign in on my phone. Verrrryyy odd. At first I suspected some hack attempt, but my Account checked out fine. Having changed my password recently, I had to wait until I got home to login.
After I logged in, all ~appeared~ to be OK. Then I opened my Calendar. B L A N K. All ten years of appointments gone. I freaked out. I have two calendars, one for personal stuff, birthdays and the like, and another with my business appointments, INCLUDING FINANCIAL STATUS of the account. Gone.
Went online on my PC, signed into Gmail and switched to my calendar. Empty. Looked in Trash. Nothing. Vanished. Nada. Niet. There's a long story here about recovery efforts, troubleshooting, Googling, etc, suffice to say that TWO separate, redundant, backups had quietly failed, without the notifications they were supposed to send. I did manage to get from the first week in April back 10 years, but lost the whole summer. Thank YOU-KNOW-WHO that I'm good friends with all my clients.
Fast forward to last week. Suddenly I get 3G only from my Verizon account. Like you, I spent days on the boards, downloading ROMS, wiping, re-wiping, trying everything short of smoke signals to get it back. No joy. I did NOT go back to stock, I must thank you greatly, as that was my next road. Now i see it's a dead end. I will NOT give up my Nougat root just to get 4G.
Perhaps this is a bit conspiracy theory sounding, but I've become convinced that Verizon is playing some game, perhaps to force us to upgrade to a new phone. I learned long ago that corporations have no soul, and will do anything they like to increase profits. They exist for two reasons; to make money for their officers and to make money for their stockholders. Any other semblance of a "Product" or "Service" exist ONLY and SOLELY for that reason. Anyone who is a Yahoo or AOL member knows the level of intrusive ads and attempts to trick people into putting spyware in their machines under the guise of "protection" or "cleanup" programs has jumped to a new level of absurdity since Verizon sucked them up. "Oath" indeed. It's what is coming out of existing customer's mouths! M O N E Y H U N G R Y.
When I chatted at length with a Verizon Tech, she made it clear that she knew the answer was to upgrade to the latest stock (I never admitted to rooting, but she knew, we spoke "between the lines" a lot). She sent me a SIM card, but it., of course, didn't fix the problem, in fact it would not even initialize properly! I had to go back to the original SIM.
Now that we've found a way (after YEARS of trying) around their stupid block on rooting, they change the game. What person who is so into their phone as to root it, will put up with 3G? This is something Verizon is playing at, Sprint too from what I gather.
My only consolation is that I've got so many WiFi's nearly everywhere I go, and when I'm not near one, my Wife's Note 4 (not rooted, on latest update) works fine. I'm glad I decided not to root hers too.
Frankly, this really ticks me off. I have better things to do than spend days copying files, flashing and reloading data. Verizon knows that, and let me tell you, it won't be THEM who sees my money when I finally do upgrade.
Thanks again for saving me from the Stock route, you saved me hours of grief.
Peace out!
PuterPro
I have run into 4g issues with this as well and almost came to conclusion is a modem issue. I want to say but can not confirm that modems that are flashed are relative to bootloader on the device. Just something I've been pondering on as I had a unlocked bootloader device and flashed for wife to use with no root and recently unlocked again.
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