unable to mount usbstorage on recovery pls help

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trezegol

Senior Member
Apr 11, 2008
66
15
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
 

ttabbal

Senior Member
Jul 1, 2009
2,076
723
Samsung Galaxy S21 Ultra
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


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.
 

trezegol

Senior Member
Apr 11, 2008
66
15
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.

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 ?
 

ttabbal

Senior Member
Jul 1, 2009
2,076
723
Samsung Galaxy S21 Ultra
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 ?


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.
 
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trezegol

Senior Member
Apr 11, 2008
66
15
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
 

trezegol

Senior Member
Apr 11, 2008
66
15
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?
 

chstewart

Senior Member
Mar 26, 2012
54
16
Lehi
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

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
 
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trezegol

Senior Member
Apr 11, 2008
66
15
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
 
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chstewart

Senior Member
Mar 26, 2012
54
16
Lehi
no luck still bootloops :(

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
 

trezegol

Senior Member
Apr 11, 2008
66
15
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

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
 

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    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 ?


    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.
    1
    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

    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