Develop Bugs

Get internet sharing and MMS working on unlocked Rogers (and AT&T?)

I finally got my internet sharing and MMS working on my unlocked Rogers Lumia 900 running on Bell. Earlier this week, I came across this page. http://forums.wpcentral.com/lumia-900/197920.htm. If you follow his instructions (minus the unplugging the cable during the rom flashing), you should have working internet sharing and MMS without having to input any APN settings. The first time I started it with the TelCel rom, I still had to input my APN to get data to work. Then I performed a hard reset by holding volume down, power, and camera buttons. After that, it picked up the correct settings from the sim card and everything works as it's supposed to. The only downside to some people is that now instead of showing "LTE" in the status bar, it shows "4G" and instead of "4G" when you are on the HSPA network, it shows an "H". I think this is a truer representation of the network you are on anyways since HSPA isn't a true 4G network like the American companies would have us believe.
Please note that if you are going to do this, you will lose any unsynced data on your phone and will also have to reinstall all your apps so backup what you need to.

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Seems interesting. I will wait for the 7.8 version to come out. I wouldn't want my phone to be stuck at 7.5 for some reason after trying this.

pmcelreavy said:
Seems interesting. I will wait for the 7.8 version to come out. I wouldn't want my phone to be stuck at 7.5 for some reason after trying this.
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If for some reason it doesn't update to 7.8, you could always just flash the stock Rogers rom back to your phone and then get 7.8.

Sent from my RM-820_nam_att_100 using Board Express

Have no problem with 4G, sharing and MMS on original AT&T firmware (using my lum with Europe operators).

Could it be a SIM card flag that prevents the sharing, the euro ops SIMS dont have it
Could it be a SIM card flag that prevents the sharing, the euro ops SIMS dont have it but the NA ops do?
valuxin said:
Have no problem with 4G, sharing and MMS on original AT&T firmware (using my lum with Europe operators).
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sa-10 said:
Could it be a SIM card flag that prevents the sharing, the euro ops SIMS dont have it but the NA ops do?
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May be, may be... But I had problem too with this features, when it worked on a 1st firmware (flashed by AT&T, not by me). Then I decided to flash it on my own via Care Suite (had flashed the earliest firmware, then updated via Zune). Now it works without any problems. After flashing try to not use the Nokia's Network Setup. If sharing would be OK, you could install NNS on your choice

It works for me after doing a hard reset with t) mobile, if I run NetworkSetup then it stops working. If I insert my att sim then it also stops working.
Sent from my RM-820_nam_att_100 using Board Express

One more datapoint...
Recently unlocked, using Taiwan Cellular unable to tether.
Before installing Network Setup receive message: no data connection found...
After installing Network Setup, "to enable tethering on this device, go to att.com...".
Same SIM card in HD7 allows internet sharing... no problem. So it's not the SIM.
On HD7, data connection shows "H" but on Lum900 showing "4G"... (not a problem, just observation)
Have hard reset with Taiwan SIM, no joy. Reflashed using Nokia Care Suite... same results.
1. It's clear, stay away from Network Settings app. Even overriding APN settings results in same bogus ATT message.
Any point in flashing a pre-8779 rom? One of the TelCel MX or Claro LTE roms?
To flash another RM808 carrier's rom on top of an ATT RM808 device, is it a straight flash with NCS or need to rename files?

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[Q] Problem with phone already activated on VERIZON INC2

Dear All
first of all, sorry for my bad language.
my problem started when i purchased an used Inc2 from swappa, i am expert in flashing ROMs for HTC phones.
when i got the phone, i s-off, installed recovery and installed custom ROM supports GSM, as i am living outside USA, and everything was good (GSM and data)
one day, suddenly the phone was not able to get a H data, only E, so i decided to factory reset to solve the problem, i return to stock ROM using RUU, then when i turn it on for the first time i discovered that its still connected to verizon Network and gave me a roaming signal, i know nothing about verizon network or how to disconnect my phone from their service.
don't tell me to contact the original owner, because i purchased this phone more than one year ago and i totally forgot from whom i toke it.
THE MAIN PROBLEM NOW, every time i insert my local SIM, the phone switch from roaming mode (CMDA) to global mode (GSM), which is OK, but when i receive or make a call, it restarts automatically !!!!
i had tried all the ROM, RUU, radios in the development section, with no hope, so, i think the problem is occur from the conflict between CMDA signal an GSM signal!!!???!! or something else, so i guess the first thing i have to do is disconnect the verizon service, BUT HOW?? somebody please help me

any thoughts folks?

Can you post your phone's settings, mainly the ones under "About Phone" including kernel, mobile network type, service state & software information, etc.?
With a local Sim card, it is possible that you device would boot up & switch to Global Mode (by default) with preference for CDMA, but you should be able to manually change it & semi-lock it to GSM only? What happens when you tried that?
There is a # of GSM only Rom that you can flash, assuming you've rooted it again & maintained S-Off with a custom recovery re-installed - and, that it was properly Sim unlocked.

Im on GSM with chilly's beanstalk 1.30 (4.2.2) and I have no problems, check if a wipe with antivenomSDW, helps.
Sent from my ADR6350 using xda app-developers app

Available Carriers

I just got this phone from a friend, unlocked. What are some US carriers i could use it with besides sprint that offer hspa+ or lte? And if you could also yell me what i need to do in order to get it working on that carrier. Thanks in advance

More important question, i think i out myself in a bad situation. I went to twrp and restored a backup of the stock rom and now it just says system preferred instead of finding the sim and has the roaming logo over the signal icon (which is now really weak btw). I have a sprint sim inserted and it still says no sim as opposed to before i restored when it accepted the sim. Also in settings the iccid and imsi are now unknown. Should i flash back to cm12? I just want the phone to work right again. I dont need the unlock i can use on sprint

NexusS4gFreak said:
More important question, i think i out myself in a bad situation. I went to twrp and restored a backup of the stock rom and now it just says system preferred instead of finding the sim and has the roaming logo over the signal icon (which is now really weak btw). I have a sprint sim inserted and it still says no sim as opposed to before i restored when it accepted the sim. Also in settings the iccid and imsi are now unknown. Should i flash back to cm12? I just want the phone to work right again. I dont need the unlock i can use on sprint
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If you restored a backup of stock over cm12, id assume there would be issues. What I would do is first "tot" back to the same stock version your stock backup is on, then root, flash recovery, then restore the backup, that will give you the best results. I would suggest doing that order now as well since you already did that restore. (Make sure you have those backup files also backed up on PC or whatnot so you can place them back to your phone after "tot"-ing)

Help Needed to read SIM on unrooted S3- NO SIGNAL

Ok So I have a T-Mobile Samsung Galaxy s3 (SGH-T999L) (LTE Version). I previously rooted it and installed custom ROM using Cyanogenmod, then changed to TWRP later. Then, i wanted to revert to stock and unrooted my phone. I was told to install latest firmware and did so (Android 4.3 T999LUVUBOH1). Since then, i went from T-Mobile to MetroPCS. The phone is unlocked. When trying to use metropcs sim card on s3, it works for about 5 minutes (able to call & text), then all of a sudden i get NO SIGNAL and cannot do ANYTHING! I used my husband's metropcs sim card and same thing happened. Then, I tried my mom's AT&T sim card and it did seem to work fine for awhile. I tried accessing mobile networks to change APN while I had my mom's sim in there and was able to but when i insert my sim card it says: "Insert Sim to access network services" and there IS a sim in there. Our sims work fine on other phones. I don't understand what's going on. I've tried to flash a modem and even rooting it again, but Odin keeps failing or not responding. I cannot flash ANYTHING!!! Please help!

Flash back to a stock ROM and make sure everything works. Once this is done, call MetroPCS to see if they need to register the phone's imei on their system.

Thanks. It had official stock Rom already on it. I can try again if Odin decides to work for me. I have USB debugging on. I'll let you know what happens. I will also call Metro PCS. thanks again.

audit13 said:
Flash back to a stock ROM and make sure everything works. Once this is done, call MetroPCS to see if they need to register the phone's imei on their system.
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Omgoodness!! Thank you SO much! Calling metro pcs worked. I'm in disbelief! So simple, I didn't even think of it. I really appreciate your help!

No problem. Glad it worked. We're all here to help and learn from each other.

Cannot connect to LTE (doesn't matter what rom i'm on)

Hi XDA, I have an unlocked pixel XL on verizon network. I cannot connect to LTE or anything other than 2g networks. I have clean installed, changed APNs and tried everything to properly get the LTE back. Help?

kingbri said:
Hi XDA, I have an unlocked pixel XL on verizon network. I cannot connect to LTE or anything other than 2g networks. I have clean installed, changed APNs and tried everything to properly get the LTE back. Help?
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I mean this is gonna sound dumb but have you looked at the mobile networks setting page and have your preferred network on LTE?

loeffler23 said:
I mean this is gonna sound dumb but have you looked at the mobile networks setting page and have your preferred network on LTE?
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Yes

Can you change the network operators on 8.1?

Is your unlocked Pixel XL from the USA? It seems it doesn't support the correct bands for your network

All pixels have the same radios. Dial *#*#4636#*#* click on phone info. Change settings if needed

SIM card is toast. I have had this exact thing happen to me. Just go into a VZW store and request a new one. Sim handshake needed for LTE connection only on VZW.

SynisterWolf said:
SIM card is toast. I have had this exact thing happen to me. Just go into a VZW store and request a new one. Sim handshake needed for LTE connection only on VZW.
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I did get a new sim card, problem still persists

kingbri said:
I did get a new sim card, problem still persists
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After you got the new sim and installed it did you go back to factory rom and waited a bit for it to connect to the network?
Sent from a Glade[emoji768] PlugIns[emoji768]

SynisterWolf said:
After you got the new sim and installed it did you go back to factory room and waited a bit for it to connect to the network?
Sent from a Glade[emoji768] PlugIns[emoji768]
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I put the sim in when I reset, no connection, should I try again?

kingbri said:
I put the sim in when I reset, no connection, should I try again?
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What firmware version are you on? And when you update are you flashing all or just flashing a certain thing?

loeffler23 said:
What firmware version are you on? And when you update are you flashing all or just flashing a certain thing?
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I'm on the February patch, stock. I'm flashing everything, also, is it normal for your phone number to not be your phone number with a new sim?

My number showing up on about phone is 908-770-6054. This is not my number, could it be human error?

kingbri said:
My number showing up on about phone is 908-770-6054. This is not my number, could it be human error?
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Contact your carrier or go in and tell them that it is not your number and that you are stuck on 2g they should be able to tell you how to fix it or if you go in they can fix it

I did contact my carrier, they cannot figure out what to do. Replaced the sim about 4 times, still no luck. I go into testing (secret code) and I am on 1x network @loeffler23

Sounds like your efs data could be corrupt and there is no way to fix that. Or your LTE radio is toast. Did someone try to carrier unlock your phone?

DR3W5K1 said:
Sounds like your efs data could be corrupt and there is no way to fix that. Or your LTE radio is toast. Did someone try to carrier unlock your phone?
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my phone's unlocked by default and there has to be a way to fix efs, not accessible by recovery? (what is efs)

It holds the imei and other radio proprietary info not sure what partition that data is actually in on this device. I think the efs data is no longer in /efs
Twrp used to have a option for efs backup with the data system backup and restore options