G4 boot loop, really need to recover data - G4 Q&A, Help & Troubleshooting

My G4 818P went to a boot loop yesterday. Found that it's usual hardware problem for that model.
LG service is ready to replace motherboard for free.
But in that case I will lose all my data on internal storage, whereas I can still see and touch it.
What I found at the moment:
I can't use Recovery mode as the model still have locked bootloader
can boot in *Download mode*, and run `Send_Command.exe` (used in the rooting procedure for LG devices)
The last thing allows me to sent some unix-like commands to the phone body, I can see all the files on the Internal SD (/data/media/0), can even see their content in the console using `cat` command. The problem is that I can't copy them outside the phone. External SD can't be mounted. At least I don't know if `mount` command blaming since STDERR is not available.
In addition:
I found a @jacob019 version (http://forum.xda-developers.com/showpost.php?p=60557353&postcount=454) of `Send_Command.exe`, hoping to modify it to extract the data somehow;
Another option I found is eMMC Raw Tool, which works with download mode to copy phone partitions on many Qualcomm-based devices, but it doesn't see my phone.
Really appreciate any ideas or help!

Anyone?
Ready to pay for any help. Thank you!

go to a phone service? locally? they have more experience with this kind of stuff and can easily solve it.

Eventually, I found the solution for the problem.
I could download full internal memory by using a hardware module called Octopus (http://octopusbox.com/eng/news/details/572). I hired it in a phone service.
It creates an image file of whole the partitions on the phone. Later you can use it with R-Studio to get access to different partitions and files.

Hi @carmalius - I have hit a similar problem. My H818P has died and not able to boot. Could you please provide details as to how you were able to recover data.
Thanks a lot in advance....

Related

Recover your lost files??is a dream for GN?

Hello there,
it is one of the best phone and the easiest to recover or update in my opinion but,
the issue of no memory card is really something bad for your files in case if something happened to the phone!
i know backup is so important but what if you phone crashed all of the sudden because of an application update and you will enter in the repeated boot loops and you have to reset the phone or flash new software!!
OH! Then your will loose everything in the mobile !
it is really sad it happened to me twice in2 weeks i lost allot of good pictures.
i am sure most of the phone users tried to recover the lost files and no one could do it because the phone is identified as MTP, no logical letter drive can be assigned to the phone!!!
All recover software’s couldn’t find the phone and even when i tried hexcomp from the market to recover the pictures, couldn’t do it.
my question for our developers is there any scripts can make the phone work as usb when it is switched off ??
or ,
is there any way to assign a logical drive to the phone instead of MTP so we can recover the lost files?
I don’t know why Goggle didn’t think of such problem because it happened to allot of people and I am not used to back up my files before because there were in memory card.
I really hope the developers will work on such issue because this is the worst thing I found it in the phone.
I might be wrong but I think you can pull everything off the phone using adb whilst in recovery mode?
Dropbox.
It can sync pictures as soon as you take them.
You can sync files between multiple devices, including uploading and downloading to your phone.
Titanium Backup can be synced to drop box.
Check it out,
https://www.dropbox.com/referrals/NTc4MjI1MTU5
Sent from my Verizon 4G LTE Galaxy Nexus.
i tried Pull before it took long time without doing nothing
i know dropbox and i know what it do
i am asking the DEVELOPERS:
1-is there any scripts can make the phone work as usb when it is switched off ??
2-is there any way to assign a logical drive to the phone instead of MTP so we can recover the lost files?
Thanks
husme2000 said:
i tried Pull before it took long time without doing nothing
i know dropbox and i know what it do
i am asking the DEVELOPERS:
1-is there any scripts can make the phone work as usb when it is switched off ??
2-is there any way to assign a logical drive to the phone instead of MTP so we can recover the lost files?
Thanks
Click to expand...
Click to collapse
Theoretically you probably could write a CWM script to create a virtual folder and mount that as USB media via CWM. But it would require loading the script to the phone via ADB anyways.
This has also been discussed before:
[Any way to save data on a Nexus in a bootloop?]: http://forum.xda-developers.com/showthread.php?t=1448633

[Q] Glide suddenly stopped recognizing any SD cards

Hi all!
I am having this issue with my AT&T i927 and I hope you guys can bring some light to the matter.
I was using OsiMood 2.2.14 (which is great!), for about a week, when out of nowhere I got a message saying that the SD was removed or something similar. I was just charging the phone, I wasn't using the phone at all when I got the message.
So far I tried:
1. Tested 3 different SD cards, whith no lucky.
2. Tried to restore only sd-ext under CWM (advanced option), but it did not work.
3. Restored the original AT&T settings that were backed up with CWM and the problem persisted.
Is there any way to mound the ext-sd with CWM or any other way to make sure that it's not a hardware issue?
I read about a so called "usb brick" on other Android phones, but couldn't find anything specific to our model. This may be the case?
Thank you!
Change the volds. fstab file from mmc1 to mmc2. That will redirect the kernels path to the external SD. Problem solved
Sent from my SAMSUNG-SGH-I997 using xda premium
Thank you for the reply, but how exactly am I suposed to do that?
Seemingly, you must edit this file located at /system/etc/vold.fstab on your phone, with a text editor or if you prefer a shell.
Right, I have got to the following line:
dev_mount sdcard1 /mnt/sdcard/external_sd auto /devices/platform/sdhci-tegra.2/mmc_host/mmc1/mmc1
Should I change it to the following?
dev_mount sdcard1 /mnt/sdcard/external_sd auto /devices/platform/sdhci-tegra.2/mmc_host/mmc2/mmc2
Another issue is that the file is read-only, how do I edit it? Also there is another identical file under /etc ... should I change the /system/etc one only?
Thanks!
/etc is a link to /system/etc, so this is exactly the same file.
You can edit it with a file manager like "ES File Explorer" which provides root access and write rights on mount.
Thank you. I've managed to change that line as in my previous post, but the issue persists.
By now, I've also flashed the original firmware with ODIN and also tried to flash the kernel only, but still no go.
Any other thoughts?
No ideas? Please guys, I haven't got my sd slot access back yet
Could someone please paste here the original vold.fstab so I can check if something is messed up there?
Thanks
After you flashed the firmware through odin, did you do the "Firmware Upgrade and Initialization" through kies, its under "tools"
(This will wipe your device)
After I did odin stock, I had problems untill I did this.
Sent from my SAMSUNG-SGH-I927 using XDA
Ok I will try that now as a last resort and I will post how it goes.
Well, maybe the real last resort would be the emergency recovery option, but it requires a code.
Fingers crossed...
Um, its been a while! How's it goin'?
Sent from my SAMSUNG-SGH-I927 using XDA
Thanks for the idea, but it didn't work. Still no SD card access.
Any other ideas? What about this emergency option on Kies, is it worth a try?
Any chances to be a hardware issue? like a sudden SD slot defect on the phone? There was no damage or falls or anything like that, for sure.
Well, now it's unrooted with stock recovery... take it to AT&T. They will test it and likely replace it right then. If they don't replace it they will mail you a replacement and you mail the defective one back.
We had to do this when my Dad's Atrix bricked from an ota from Motorola. (it was unmodified too, pure stock.)
Humm... I am afrraid it won't be possible as I livein Rio, and there's no ATT over here. I had to take the risks, as I need a physical keyboard (had a n900 before).
'There's samsung however, but my flash counter is not nil, and I am not sure that they would sort it here, as it's not sold here. To make things worse, I would need the purchase invoice from.US, not sure they sent me that.
Any thoughts are very welcome.
Humm... I am afrraid it won't be possible as I livein Rio, and there's no ATT over here. I had to take the risks, as I need a physical keyboard (had a n900 before).
'There's samsung however, but my flash counter is not nil, and I am not sure that they would sort it here, as it's not sold here. To make things worse, I would need the purchase invoice from.US, not sure they sent me that.
Any thoughts are very welcome.
Oh, that's a bummer. I really don't know, I'm sorry.
Sent from my SAMSUNG-SGH-I927 using XDA
Is there anyway for us to boot into fastboot mode? As I've found on google a way to restore sd brick, it's a fastboot command that you use on windows cmd, having the phone on the usb.
Any clues?
Had this happen to me the other day on my stock rom. Was fooling around in a game and got kicked back out to the home screen where it told me both the internal storage and the sd had been ejected. Took about an hour of turning the phone on and off, but I did manage to get it to work by booting with no sd card inserted, then inserting it after media scanner ran the first time.
Good luck hope this helps
Thank's for the advice men, I will try it and post the results here.
I tried what you said but id didn't work, so I put it back on stock using Odin and updated using Kies. So it was almost back to the original state (only the version was 2.3.5 rather than 2.3.6).
As I had tried everything, I was convinced it was a hardware issue, however, out of nowhere, it recognized the sd that was inside it.
I have no clue how I did it, so I could help other people. I only know that I have installed a animal sounds kids game, that had a counter and some ads and it apparently cleared the recent apps tab (if you hold the home key) and it was back to life then.
Anyone knows, what sort of command would clear the recent tab and in some way force the device to mount or unmount the ext sd?

[Q] Desperate newbie with deleted files problem….help please!!

I have a real cry for help!
Somehow all my pictures disappeared from my Galaxy Nexus. My only possible explanation (since it could not have decided to delete them itself!) is that I must have been a complete idiot and last night when I thought I was deleting a video I had just taken I must deleted the camera directory itself. This is supported by the fact that there was no ‘camera’ directory when I looked this morning. I then took a new photo and the directory reappeared. I have plenty of experience with PC’s but I’m a newbie with smartphones. I figured if I don’t write any more files to the phone then most of the actual data should still be there so I hoped to do some kind of undelete.
I’ve done some research and it looks like the ‘feature’ of only connecting as an MTP device (rather than USB mass storage) is potentially a killer blow. Without an assigned drive letter it seems that none of the usual recovery programmes will recognise the phone.
In theory an alternative might be to take a complete image of the phone contents and somehow recover the data from here?
I am pretty desperate as I have five months of pictures/videos of my kids etc, and most of that data must still be on the phone – but how to get to it?
Finally – yes I am a complete plonker, I shouldn’t have made such a stupid mistake and I should have backed up the phone or the pictures. I have learned my lesson. But given that, is there anything I can do?
BTW - the phone came from 3 network (via a reseller) and I have not touched it with respect to unlocking/rooting etc. It is in the state I received it.
HELP please!
Thanks very much...........
I believe the MTP vs. USB Mass storage would be a driver thing. There are many different versions of drivers so its possible there are ones that will mount the phone with a drive letter. I can think of some other things to try (Boot into fastboot mode by turning phone off then powering on by holding power, volume up and volume down at the same time and holding till it vibrates). You could also try Disk Management under windows to see if you can assign a letter
In the future I highly recommend setting up a google account and using Google Photo/Instant Upload to keep a backup of your photos. You dont even have to sync anything else
Thanks for your suggestions, much appreciated.
I’ve now tried going into fastboot mode and connecting to PC but no joy – Windows recognises there is a device connected (usually ID’d as an OMAP4440) but can’t find a driver.
Disk Management also doesn’t show the Nexus as a drive and therefore won’t allow a Drive letter to be assigned.
Try these (obviously no guarantees and I havent used any personally)
https://play.google.com/store/apps/details?id=fahrbot.apps.undelete
http://android-photo-recovery.com/tutorials/deleted-file-recovery-for-google-nexus-phones.html
EDIT: Found another:
http://www.wondershare.com/disk-utility/recover-deleted-photos-from-nexus-s-and-galaxy-nexus.html
Thanks again, I appreciate all suggestions. Yes I have come across these and unfortunately they don’t solve my issue. The last two are amongst those I’d seen reported as not working as they need a drive letter. I had installed both anyway but found that to be true (
The first requires root access which I don’t have. If I understand correctly, to root I’ll need to unlock the bootloader first, and unlocking will erase all the data anyway??
Unfortunately, you are out of luck. You cannot mount the storage on a GNex in USB Mass Storage mode, and I am pretty sure that none of the "undelete" programs that run in Android support ext4 (which is what our GNex internal storage is formatted).
If you are running 4.0.1 or 4.0.2, you can still get root access without losing your data (but not on 4.0.4), but I can't see how it will help you given what I mentioned above.
I am on 4.04 so sounds like I can't get root access without overwriting, can I roll back to 4.01/2 without overwriting the data? (sounds unlikely but I have to ask - I upgraded from 4.02 without losing data....).
If not, is there a way to get a data image without rooting? That way at least I have the data preserved if at some future point it becomes possible to do an undelete on Ext4 data??
Gavdroid said:
[snip]
can I roll back to 4.02/3 without overwriting the data?
Click to expand...
Click to collapse
Unfortunately no.
Gavdroid said:
If not, is there a way to get a data image without rooting? That way at least I have the data preserved if at some future point it becomes possible to do an undelete on Ext4 data??
Click to expand...
Click to collapse
I believe there are utilities to "do an undelete" on ext4. The problem is how to get access to the data image. I don't really know of any way to pull off the data partition of a GNex to your computer, but it may be possible.
Have a look at this thread. I think shaaXo managed to find a way for your computer to see the memory on the GNex and likely dump it (although it is not very user-friendly).
That sucks. If it's deleted, it's gone for good. Sorry, buddy.
Sent from my Galaxy Nexus using XDA
Thanks very much I will go through that post and see where I get to!
Edit! - uh-oh, taking a quick look it seems you need to use CWM, which I take to be ClockworkMod, which I thought required the phone to be rooted to install it? And if I understand correctly, rooting requires an unlocked bootloader, which wipes your data??
I will take a deeper look in case I've misunderstood (very likely), but am I thinking clearly here?

Recover deleted files

While updating to lollipop i accidentally relocked and unlocked the bootloader resulting in a full memory wipe but i had my college work on there so i really need to recover the data lost but upon connecting the phone to the pc it appears as "portable device" which is not detected by recovery tools as well as the android apps as the undeleter root couldn't recover the data i need so is there a way to
1- connect htc one m8 to the pc as usb storage (aka removable disk)
2- another way to recover files
Thanks in advance
The issue is that Android now mounts internal storage by MTP, as opposed to the old Mass USB storage format. So computer's can no longer read the memory like its a USB drive. I think at some point (probably not even for this phone) I saw a method to dump the files in order to perform a file recovery, but it was pretty complicated and looked like a PITA.
You can try some apps on the Play Store that claim to recover files (using the phone itself, not a computer). But I've never used any, can't vouch for them, and don't know if they really work. Also keep in mind, the more you use the phone, the higher the likelihood that the files you want will be overwritten by other data.
Good luck. But in the future you have to remember to backup important personal data before making any major changes or mods to the device. I never fail to be disappointed at how many folks never bother to backup their important data; than freak out about it once its lost. Most of the time, at that point its too late. You should have been backing it up all along. If its important to you, back it up.
Well sir thank ypu for your help i don't think ill be able not to use the phone all that long as well as im now facing that the wifi wont open which is really annoying

LG G4 Verizon (VS986) - Recovering deleted photos/videos from internal memory on 6.0

Trying to delete a two-second mistake video through the "Gallery" app, I highlighted and hit "Delete" after selecting the video's folder, rather than the video itself.
This wiped out all photos and videos (kids, beach trip, more family pics, vegetable garden, etc.). &%@#%@!!
I know this basically only deleted a pointer to the location (on "disk") of the folder. I haven't touched the phone since and I know the vast majority of my precious memories are all sitting there waiting to be recovered.
I have an LG G4 Verizon / VS986 running marshmallow 6.0 and VS9862BA
The photos and videos folder was on the phone's internal memory and not on an SD card.
From reading many threads on xda-developers, I have gleaned the following:
- For recovery software to access the /sdcard partition directly (to look for deleted files), the phone needs to be rooted.
- A root for LG G4 Verizon / VS986 on marshmallow 6.0 has not been developed.
- VS986 running lollipop 5.x is rootable
As I understand it, any way available of downgrading to lollipop will reimage the entire phone, blowing away all my hidden deleted data anyway. Is this correct?
With the phone as it is now, is there a way for me to flash a 5.x system image to just the /system partition and not overwrite the entire phone?
If not, is there a way for me, without root access, to take an image of the entire phone (perhaps through boot menu's USB debug mode) and then mount it and scan with recovery tools?
I would follow this procedure ([GUIDE] Internal Memory Data Recovery - Yes We Can! by Wartickler) but it requires root access.
Any other possible ways to recover this data? Am I missing a "How to root Verizon LG G4 under Android 6.0" thread somewhere in this giant site?
I'm pretty desperate.
I will give thanks and praise and a paypal donation to anyone who can help me recover these.
As i know, you need to be rooted to recover images. But try DiskDigger, i have not tried it yet, so i cant say anything about it.
There is a way even when not rooted.
Try the backup guide within download mode here :
https://forum.xda-developers.com/g4/general/fix-lg-g4-bootloop-issue-t3647538
I recommend to use FWUL for this because it has all all required on board
.
Sent from my LG-H815 using XDA Labs
Undeleteme said:
Trying to delete a two-second mistake video through the "Gallery" app, I highlighted and hit "Delete" after selecting the video's folder, rather than the video itself.
This wiped out all photos and videos (kids, beach trip, more family pics, vegetable garden, etc.). &%@#%@!!
I know this basically only deleted a pointer to the location (on "disk") of the folder. I haven't touched the phone since and I know the vast majority of my precious memories are all sitting there waiting to be recovered.
I have an LG G4 Verizon / VS986 running marshmallow 6.0 and VS9862BA
The photos and videos folder was on the phone's internal memory and not on an SD card.
From reading many threads on xda-developers, I have gleaned the following:
- For recovery software to access the /sdcard partition directly (to look for deleted files), the phone needs to be rooted.
- A root for LG G4 Verizon / VS986 on marshmallow 6.0 has not been developed.
- VS986 running lollipop 5.x is rootable
As I understand it, any way available of downgrading to lollipop will reimage the entire phone, blowing away all my hidden deleted data anyway. Is this correct?
With the phone as it is now, is there a way for me to flash a 5.x system image to just the /system partition and not overwrite the entire phone?
If not, is there a way for me, without root access, to take an image of the entire phone (perhaps through boot menu's USB debug mode) and then mount it and scan with recovery tools?
I would follow this procedure ([GUIDE] Internal Memory Data Recovery - Yes We Can! by Wartickler) but it requires root access.
Any other possible ways to recover this data? Am I missing a "How to root Verizon LG G4 under Android 6.0" thread somewhere in this giant site?
I'm pretty desperate.
I will give thanks and praise and a paypal donation to anyone who can help me recover these.
Click to expand...
Click to collapse
disk digger is good even without root but most of the pics arent orig quality

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