Develop Bugs

unable to mount usbstorage on recovery pls help

need help from anyone pls for some reason after i install a rom my phone keeps looping. and sometimes will load to main screen but i get no signal and after a few mins phone starts looping... i can go to recoveryand flash any rom and i get e: unable to mount usbstorage... i used odin back to stock 3 times still same thing.. i did notice on settings baseband said unknown... will donate $50 if someone can help me fix it thanks

trezegol said:
need help from anyone pls for some reason after i install a rom my phone keeps looping. and sometimes will load to main screen but i get no signal and after a few mins phone starts looping... i can go to recoveryand flash any rom and i get e: unable to mount usbstorage... i used odin back to stock 3 times still same thing.. i did notice on settings baseband said unknown... will donate $50 if someone can help me fix it thanks
Click to expand...
Click to collapse
That error isn't important, unless you're trying to load something from a device connected via OTG cable. It's just letting you know that it's not finding the OTG storage, so if you need it you know to look into that. Flash the latest TWRP from Odin. Boot to recovery and factory reset, no Odin doesn't wipe. Then flash stock with Odin. See if you can boot and sit without looping. Don't screw with it, just let it sit for a bit and settle. Just watch for 5min or so to see if it loops. It's probably bad data and factory reset will fix it. The stock flash it just to make sure you have a known good base. If it doesn't loop in 5min or so, it's probably fine. If it does, try getting a logcat. There's not much anyone can do to help without more information at that point.
No signal and baseband unknown could be a corrupted EFS. You DID back that up didn't you? Does the IEMI show in the settings? Try booting without a SIM. If that's the problem, it might help.

ttabbal said:
That error isn't important, unless you're trying to load something from a device connected via OTG cable. It's just letting you know that it's not finding the OTG storage, so if you need it you know to look into that. Flash the latest TWRP from Odin. Boot to recovery and factory reset, no Odin doesn't wipe. Then flash stock with Odin. See if you can boot and sit without looping. Don't screw with it, just let it sit for a bit and settle. Just watch for 5min or so to see if it loops. It's probably bad data and factory reset will fix it. The stock flash it just to make sure you have a known good base. If it doesn't loop in 5min or so, it's probably fine. If it does, try getting a logcat. There's not much anyone can do to help without more information at that point.
No signal and baseband unknown could be a corrupted EFS. You DID back that up didn't you? Does the IEMI show in the settings? Try booting without a SIM. If that's the problem, it might help.
Click to expand...
Click to collapse
thanks for your help i did try factory wipe and then odin but no luck i do have a backup of my efs but dont know how to restore efs since i can go in to the phone only recovery mode would you be able to help me restore my efs ?

trezegol said:
thanks for your help i did try factory wipe and then odin but no luck i do have a backup of my efs but dont know how to restore efs since i can go in to the phone only recovery mode would you be able to help me restore my efs ?
Click to expand...
Click to collapse
How did you back it up? TWRP should be able to restore it if you used that. If not, I would need to find the partition number and you would use dd to write it. I've never had to mess with it on the Note 3. What's the filename of your backup file? You might need to decompress it first.

i used the efs backup tool posted somewhere here i also did a backup with a diferent tool the firstone gave me a efs.zip that contains a efs.raw.img and also a efs.tar files is that what i need ? i did the backup when everything was working normal

ill try anything you can help with even if it doesnt work or ends up on a hard brick would you be able to help me via teamviewer?

trezegol said:
i used the efs backup tool posted somewhere here i also did a backup with a diferent tool the firstone gave me a efs.zip that contains a efs.raw.img and also a efs.tar files is that what i need ? i did the backup when everything was working normal
Click to expand...
Click to collapse
Can you hook the phone up to kies and do a restore that way? Just give it your serial number and it does the rest. It will restore all partitions including your efs. Have restored a couple friends phones this way which appeared to be unrecoverable in one way or another....
Sent from my SM-N900T using xda app-developers app

chstewart can you give me the steps you did to restore it via kies pls.....nevermind got it its installing rightnow ill let you know in a min

no luck still bootloops

trezegol said:
no luck still bootloops
Click to expand...
Click to collapse
I'm almost for a loss as my understanding when using kies it re writes all partitions of the phone. I've restored a couple phones that way for friends that were completely borked. 'Missing imei etc.'
It asked for the serial number and showed successful when done?
Sent from my SM-N900T using xda app-developers app

Just to make sure all the bases are covered... You tried this? http://forum.xda-developers.com/showthread.php?t=2471421
I got that issue last night, and that fixed it right up.

chstewart said:
I'm almost for a loss as my understanding when using kies it re writes all partitions of the phone. I've restored a couple phones that way for friends that were completely borked. 'Missing imei etc.'
It asked for the serial number and showed successful when done?
Sent from my SM-N900T using xda app-developers app
Click to expand...
Click to collapse
it did serial number and took about 25mins to download software and about 10 mins to finish reboot it it self when kies said it was done and nothing still bootloop

ttabbal said:
Just to make sure all the bases are covered... You tried this? http://forum.xda-developers.com/showthread.php?t=2471421
I got that issue last night, and that fixed it right up.
Click to expand...
Click to collapse
that's the first thing I tried did it many times

CM 11 unknown baseband

I came over from the stock TW rom, I could not get signal. Baseband and IMEI information was null - despite using the clockworkmod recovery, I also have tried the modified TWRP version. I then tested the cm10.1, same issue. anyone has any ideas as to why this is happening?

That's because you didn't backup your efs!!! When you install a custom or whatever ROM you should backup your efs, which is the imei and WiFi and those.. When the efs is damaged by flashing a ROM, you can restore the efs backup you had and everything will come back to normal. I'm not sure how to recover your efs if u don't have a backup.. Research
Give me a thanks button if I helped

firechaos said:
I came over from the stock TW rom, I could not get signal. Baseband and IMEI information was null - despite using the clockworkmod recovery, I also have tried the modified TWRP version. I then tested the cm10.1, same issue. anyone has any ideas as to why this is happening?
Click to expand...
Click to collapse
i have the same issue with newly flashed stock rom. i also posted Q but no one was really helpful. still looking for some repair. if u find a way to sort it out, plz let me know,

kaleem11 said:
i have the same issue with newly flashed stock rom. i also posted Q but no one was really helpful. still looking for some repair. if u find a way to sort it out, plz let me know,
Click to expand...
Click to collapse
This probably might help you guys.
Let people know if it helps!

firechaos said:
I came over from the stock TW rom, I could not get signal. Baseband and IMEI information was null - despite using the clockworkmod recovery, I also have tried the modified TWRP version. I then tested the cm10.1, same issue. anyone has any ideas as to why this is happening?
Click to expand...
Click to collapse
maybe this will help.
http://forum.xda-developers.com/showthread.php?t=2567862&nocache=1
"Just sharing my experience in solving this issue. Hopefully it will help solve those who have similar issues.
I flashed a file which messed up my EFS partition. I had a backup and tried to use the available programs to restore my EFS using my backup. None worked. I even brought it to the samsung store, but they said they would change the motherboard and reprogram, and replacement and service would cost more than half the cost of a new N7105. I purchased the phone in another country. The people who had stores to repair phones gave up on my phone. They also offered to replace the motherboard for US$175.00.
My phone was originally under a DMB2 rom (from Singapore I think). I flashed a DMC3 rom, and used this for five months, until i encountered the problem.
I initially gave up and got a note 3. But i could not believe the phone was junk and people in XDA (as I observed) do not seem to give up.
After two weeks, i found the solution below, which brought my phone to working condition.
1. I flashed the stock rom N7105ZHDMI2_N7105ZZHDMI2_TGY from sammobile.
2. I flashed a pit file using Odin. The pit file is found here:
http://forum.xda-developers.com/show....php?t=2137008
This restored the baseband. But IMEI was no longer NULL. However, it was still 0.
3. I downloaded and used the EFS Pro from this link:
http://forum.xda-developers.com/show....php?t=1308546
Before using EFS Pro, make sure you dial *#7284# and change the setting of Qualcomm USB Settings to
"RMNET + DM + MODEM"
I will not hurt your phone if you do, but EFS Pro will just not work. If you don't do this, the EFS Pro will display "Phone not responding" or something similar.
NOTE: I couldn't find the option with RMNET, but i used the option that also had an "RM*** + DM + MODEM".
After the phone is read, change back the IMEI to what it was originally.
Dial *#7284# again to change back to "MTP+ADB".
It's all working now.
Hope this is able to help someone. Now i have two working versions of Note.
Thanks to the authors of the program i used, and the people who uploaded the files used.
Cheers!

karlonicolas said:
maybe this will help.
http://forum.xda-developers.com/showthread.php?t=2567862&nocache=1
"Just sharing my experience in solving this issue. Hopefully it will help solve those who have similar issues.
I flashed a file which messed up my EFS partition. I had a backup and tried to use the available programs to restore my EFS using my backup. None worked. I even brought it to the samsung store, but they said they would change the motherboard and reprogram, and replacement and service would cost more than half the cost of a new N7105. I purchased the phone in another country. The people who had stores to repair phones gave up on my phone. They also offered to replace the motherboard for US$175.00.
My phone was originally under a DMB2 rom (from Singapore I think). I flashed a DMC3 rom, and used this for five months, until i encountered the problem.
I initially gave up and got a note 3. But i could not believe the phone was junk and people in XDA (as I observed) do not seem to give up.
After two weeks, i found the solution below, which brought my phone to working condition.
1. I flashed the stock rom N7105ZHDMI2_N7105ZZHDMI2_TGY from sammobile.
2. I flashed a pit file using Odin. The pit file is found here:
http://forum.xda-developers.com/show....php?t=2137008
This restored the baseband. But IMEI was no longer NULL. However, it was still 0.
3. I downloaded and used the EFS Pro from this link:
http://forum.xda-developers.com/show....php?t=1308546
Before using EFS Pro, make sure you dial *#7284# and change the setting of Qualcomm USB Settings to
"RMNET + DM + MODEM"
I will not hurt your phone if you do, but EFS Pro will just not work. If you don't do this, the EFS Pro will display "Phone not responding" or something similar.
NOTE: I couldn't find the option with RMNET, but i used the option that also had an "RM*** + DM + MODEM".
After the phone is read, change back the IMEI to what it was originally.
Dial *#7284# again to change back to "MTP+ADB".
It's all working now.
Hope this is able to help someone. Now i have two working versions of Note.
Thanks to the authors of the program i used, and the people who uploaded the files used.
Cheers!
Click to expand...
Click to collapse
i have got exynos chipset. so ur solution is not applicable. anyways, thanks for help anyway.

ysrini said:
This probably might help you guys.
Let people know if it helps!
Click to expand...
Click to collapse
THIS IS THE SOLUTION!
SELinux enforced mode stops radio signal from working.
No matter how many times i restored EFS, it wouldnt work.

part of what i did above was taken from this post:
http://forum.gsmhosting.com/vbb/f777/tutorial-galaxy-s3-backup-restore-imei-without-root-1513909/
take note of the following line:
*If you are running a aosp rom (cm9,cm10,aokp etc) you can use the diag method described HERE"
this might help you also because you are using CM.

[Q] Network problem

I have network problems, i have the correct imei, serial number and baseband but in the phone status says "network unknown"i don't have an efs backup, and my actual efs folder doesn't have any of the nv files, another thing is that the phone has signal bars even without the sim card, i have done a lot of factory resets, flashes thru odin but nothing works, can anybody help me to solve my issue please? Sorry if my english isn't good since is not my native language...thanks in advance

Wrong modem.

Thanks for your reply but I don't think that is a modem problem because I've flashed all the possible modems and still the same way, another thing is that I entered to the secret menu and did a erase of efs 1 2 3 or something, is there a way to recover or fix that problem? Please help me I am desperate

if you erased your "efs", your phone is toast

wase4711 said:
if you erased your "efs", your phone is toast
Click to expand...
Click to collapse
So there isn't any way to restore it?

well, I assume you made a back up of everything before you started flashing and installing all sorts of files on your phone...

wase4711 said:
well, I assume you made a back up of everything before you started flashing and installing all sorts of files on your phone...
Click to expand...
Click to collapse
I didn't do any backup, so I'm screwed right?

D850 AT&T 3G not working?

I got a rooted G3 D850 from a guy, and flashed Cloudy 2.2. 3G is not working when I select WCDMA from network mode even all the APN setting s are correct. As soon as I select WCDMA, the mobile signals disappear. I had D850 in past and never had this issue over cloudy or any ROMs. What might be the issue, maybe some messed with hidden menu (3845) settings?

sherrypizza said:
I got a rooted G3 D850 from a guy, and flashed Cloudy 2.2. 3G is not working when I select WCDMA from network mode even all the APN setting s are correct. As soon as I select WCDMA, the mobile signals disappear. I had D850 in past and never had this issue over cloudy or any ROMs. What might be the issue, maybe some messed with hidden menu (3845) settings?
Click to expand...
Click to collapse
Could it possibly be a problem with the network frequency that your carrier runs on>?

itsbighead said:
Could it possibly be a problem with the network frequency that your carrier runs on>?
Click to expand...
Click to collapse
No, my sim on my friends cellphone works great on 3G

sherrypizza said:
No, my sim on my friends cellphone works great on 3G
Click to expand...
Click to collapse
Did you find solution ?

Hnk1 said:
Did you find solution ?
Click to expand...
Click to collapse
Yeah, I sold it

Hnk1 said:
Did you find solution ?
Click to expand...
Click to collapse
Check your EFS data.
IMEI # should not read 0
NV data could also be corrupt.
In that case you have to research how to get it back to normal or pay a shop to repair it back for you.
Back to stock .tot or .kdz flash wont fix this problem.
Neither will a factory reset.
Always backup your EFS data especially when your phone is healthy and everything's working normally!

sherrypizza said:
Yeah, I sold it
Click to expand...
Click to collapse
tiguy99 said:
Check your EFS data.
IMEI # should not read 0
NV data could also be corrupt.
In that case you have to research how to get it back to normal or pay a shop to repair it back for you.
Back to stock .tot or .kdz flash wont fix this problem.
Neither will a factory reset.
Always backup your EFS data especially when your phone is healthy and everything's working normally!
Click to expand...
Click to collapse
Actually I was not expecting that the values would be affected by using the hidden menu to fix my network to LTE only. I later changed it to sort of GLOBAL (GSM/WCDMA/LTE) but that didnot fix it.
I then backup my EFS and tinkered with hidden menu and i was successful in bringing back LTE, however, I am stuck with no 3g. I guess I will need to work with QPST and QXDM now. I am now making a second backup with EFS tool.
I just thought it wouldnot go too far that I will need to JTAG it.
Imei is fine. Just need to see NV values and would update!
UPDATE :
Strangely all the NV values are right. I restored my EFS to old state (I have two backups). The LTE is gone again. (this was immediately after LTE and 3g were gone) while flashing other EFS does enable back LTE. So it is all in the hidden menu!
I tinkered with LTE again in hidden menu and it is working again.
REQUEST @tiguy99
Download EFS Tool from here
http://forum.xda-developers.com/attachment.php?attachmentid=3087596&d=1419867628
Main thread of it
http://forum.xda-developers.com/gal...09-06-14-efs-professional-t1308546?styleid=18
1. go in backup tab
2. select all partitions
3. Select 3 partitions
backup modem, modemst1 and modemst2 and upload it for me so I can try to restore the settings to see if that works.
You will need root and busybox installed.
Many thanks!

Thats awesome!
Glad you got it working quickly.
Took me a week with my G2 trying to figure it out since most of the guides didn't fix my problem 100%
It would fix then 3 minutes later I'd lose 3G & 4G again
I had to find a QCN file load that and then work with both QPST and EFS Pro to get it working.
Needed all #s to correct it.
Mine finally fixed when the MEID was corrected as well.
That was weird bc I dont ever remember changing it the first
Place!
Hnk1 said:
Actually I was not expecting that the values would be affected by using the hidden menu to fix my network to LTE only. I later changed it to sort of GLOBAL (GSM/WCDMA/LTE) but that didnot fix it.
I then backup my EFS and tinkered with hidden menu and i was successful in bringing back LTE, however, I am stuck with no 3g. I guess I will need to work with QPST and QXDM now. I am now making a second backup with EFS tool.
I just thought it wouldnot go too far that I will need to JTAG it.
Imei is fine. Just need to see NV values and would update!
UPDATE :
Strangely all the NV values are right. I restored my EFS to old state (I have two backups). The LTE is gone again. (this was immediately after LTE and 3g were gone) while flashing other EFS does enable back LTE. So it is all in the hidden menu!
I tinkered with LTE again in hidden menu and it is working again.
REQUEST @tiguy99
Download EFS Tool from here
http://forum.xda-developers.com/attachment.php?attachmentid=3087596&d=1419867628
Main thread of it
http://forum.xda-developers.com/gal...09-06-14-efs-professional-t1308546?styleid=18
1. go in backup tab
2. select all partitions
3. Select 3 partitions
backup modem, modemst1 and modemst2 and upload it for me so I can try to restore the settings to see if that works.
You will need root and busybox installed.
Many thanks!
Click to expand...
Click to collapse

tiguy99 said:
Thats awesome!
Glad you got it working quickly.
Took me a week with my G2 trying to figure it out since most of the guides didn't fix my problem 100%
It would fix then 3 minutes later I'd lose 3G & 4G again
I had to find a QCN file load that and then work with both QPST and EFS Pro to get it working.
Needed all #s to correct it.
Mine finally fixed when the MEID was corrected as well.
That was weird bc I dont ever remember changing it the first
Place!
Click to expand...
Click to collapse
Cheers mate but actually , 3g is not working. Could you get me the two files / QCN etc for me to flash on my device ?
Not EFS because that has device specific information as well.
I would be really glad if you can mate!
Many thanks!
I also made a thread here :
http://forum.xda-developers.com/lg-g3/general/request-3g-2g-lte-d850-t3300908#post64977857

Hnk1 said:
Cheers mate but actually , 3g is not working. Could you get me the two files / QCN etc for me to flash on my device ?
Not EFS because that has device specific information as well.
I would be really glad if you can mate!
Many thanks!
I also made a thread here :
http://forum.xda-developers.com/lg-g3/general/request-3g-2g-lte-d850-t3300908#post64977857
Click to expand...
Click to collapse
It was for my G2.
It's a different phone.
Google gsmforums lg g3 qcn and see if you can find the qcn file that way.
Thats how I found the one for my G2
Edit
Did a search and found this site.
http://forum.gsmhosting.com/vbb/f799/qcn-file-thread-1867281/index2.html

tiguy99 said:
It was for my G2.
It's a different phone.
Google gsmforums lg g3 qcn and see if you can find the qcn file that way.
Thats how I found the one for my G2
Edit
Did a search and found this site.
http://forum.gsmhosting.com/vbb/f799/qcn-file-thread-1867281/index2.html
Click to expand...
Click to collapse
Thanks alot for guiding me in the right direction. Restoring QPN file really helped via QPST > Software Download Mode > Restore QPN.
However, the qcn file you mentioned is for another device!
QCN file must be device specific.
Good Luck to all of you and this is going to be a reference in case someone wants to fix their QPN (updating the link below)
http://forum.xda-developers.com/lg-g3/general/request-3g-2g-lte-d850-t3300908

Hnk1 said:
Thanks alot for guiding me in the right direction. Restoring QPN file really helped via QPST > Software Download Mode > Restore QPN.
However, the qcn file you mentioned is for another device!
QCN file must be device specific.
Good Luck to all of you and this is going to be a reference in case someone wants to fix their QPN (updating the link below)
http://forum.xda-developers.com/lg-g3/general/request-3g-2g-lte-d850-t3300908
Click to expand...
Click to collapse
Thats why I mentioned looking for the LG G3 and gave the proper link.
Always confirm before you flash!!!

Deleted EFS folder.

Hi everyone,
I'm fairly new to the android section and I recently received a phone from a friend who deleted his EFS folder. This phone is a Samsung Galaxy Note II. I have tried various different software to restore the efs folder and unfortunately no success. Is there any possible way to restore it without sending it to Samsung?
Edit: Yes, i have flashed the stock ROM, still no luck!

TGXclusive said:
Hi everyone,
I'm fairly new to the android section and I recently received a phone from a friend who deleted his EFS folder. This phone is a Samsung Galaxy Note II. I have tried various different software to restore the efs folder and unfortunately no success. Is there any possible way to restore it without sending it to Samsung?
Click to expand...
Click to collapse
Have you tried flashing a stock rom. It might recreate efs folder.

vishal1286 said:
Have you tried flashing a stock rom. It might recreate efs folder.
Click to expand...
Click to collapse
Yes, i have flashed the stock rom, still no luck.

Flash the Modem/Baseband. Search for it !

ishtiak02 said:
Flash the Modem/Baseband. Search for it !
Click to expand...
Click to collapse
Done that, no luck.

Also have this problem on my Note 10.1 3G although I did not remove the efs partition. It just randomly started bootlooping while it was charging and I was gone and the recovery said it couldn't mount /efs from that day on. Kinda sucks since I now have a generic IMEI and the battery is draining from cell stand by, even when it's in airplane mode.

Bro I could hv done smthing f i ws dere. So nw i suggest you is flash philz recovery, go to factory reset and do a wipe to install new rom. Now install stock rom of your region from Odin. Then send it to the service center.
Sent from my GT-N7100 using Tapatalk

PowerValue said:
Also have this problem on my Note 10.1 3G although I did not remove the efs partition. It just randomly started bootlooping while it was charging and I was gone and the recovery said it couldn't mount /efs from that day on. Kinda sucks since I now have a generic IMEI and the battery is draining from cell stand by, even when it's in airplane mode.
Click to expand...
Click to collapse
aw man that sucks! I'm probably going to send it to Samsung, tried absolutely everything to repair mine and no success. Hope you get your problem fixed mate!

So what brand are you using ? N7100/N7105 or anything else?