Mystery: Factory Reset unlocked Sprint LG V20 now stuck in bizarre state

tem3000

Member
Aug 12, 2018
6
0
0
Boston
I did a factory reset on an unlocked Sprint LG V20. It is now in a state of… I have no idea what state it’s in but it’s completely stuck. Please help, wise people! Obi-Wan’s, you’re my only hope.

(Forgive me if this has been covered elsewhere. I really did search first.)

HISTORY:
1) Bought an unlocked Sprint LG V20 off ebay. Worked great for a year and a half with a Consumer Cellular sim.
2) It suddenly got molasses slow so I did a factory reset (power off → power+volume down → wipe data/factory reset → yes).
3) On power up, the Sprint splash screen was gone, all Sprint apps are gone, phone no longer recognizes sim (invalid sim).
4) I thought it might be relocked by Sprint despite any Sprint evidence. Contacted Sprint, said they wouldn’t unlock without the original phone number. Contacted ebay seller, he didn’t have it.
5) Out of desperation, only because I read about somewhere, I dialed on the phone ##72786# and restarted the phone as if for a factory reset. After the initial LG splash screen, Recovery Mode appeared, followed by the usual recover/reset menu.

NOW:
1) Whenever I do power off → power+volume down with the Consumer Cellular sim in, I can select Wipe/Reset or Reboot Now and the result is the same: 1) eventually, it gets to setup, starting with Talk Now (press Next), Language (press Next) to Use Wifi (setup successfully, press Next), to the Configuring phone screen.
2) This is where I have no idea what state it’s in. It will just stay on the Configuring screen and hang. Forever. Until the battery dies. The only button that will work is the Power button. I’ve selected Power Off and Restart many times, and the result is the same: the setup routine all the way to Configure Phone page to complete hang.
3) Incidentally, if I do step 1 above with the sim card in, the Configure Phone takes a lonnnng time until it eventually shows a screen saying to please insert the sim card that came with the phone and reboot. Doing so starts everything from step 1 all over again.

I seem to be in a strange state, not locked out of Sprint or Google, just locked out of making any changes to the phone other than the Recovery Mode screen. Is this what they call bricked? Ugh.

If anyone has any ideas, I’d love to hear them and would be wicked grateful!
 

cnjax

Senior Member
Aug 4, 2011
4,282
10,894
0
Jacksonville, FL
I did a factory reset on an unlocked Sprint LG V20. It is now in a state of… I have no idea what state it’s in but it’s completely stuck. Please help, wise people! Obi-Wan’s, you’re my only hope.

(Forgive me if this has been covered elsewhere. I really did search first.)

HISTORY:
1) Bought an unlocked Sprint LG V20 off ebay. Worked great for a year and a half with a Consumer Cellular sim.
2) It suddenly got molasses slow so I did a factory reset (power off → power+volume down → wipe data/factory reset → yes).
3) On power up, the Sprint splash screen was gone, all Sprint apps are gone, phone no longer recognizes sim (invalid sim).
4) I thought it might be relocked by Sprint despite any Sprint evidence. Contacted Sprint, said they wouldn’t unlock without the original phone number. Contacted ebay seller, he didn’t have it.
5) Out of desperation, only because I read about somewhere, I dialed on the phone ##72786# and restarted the phone as if for a factory reset. After the initial LG splash screen, Recovery Mode appeared, followed by the usual recover/reset menu.

NOW:
1) Whenever I do power off → power+volume down with the Consumer Cellular sim in, I can select Wipe/Reset or Reboot Now and the result is the same: 1) eventually, it gets to setup, starting with Talk Now (press Next), Language (press Next) to Use Wifi (setup successfully, press Next), to the Configuring phone screen.
2) This is where I have no idea what state it’s in. It will just stay on the Configuring screen and hang. Forever. Until the battery dies. The only button that will work is the Power button. I’ve selected Power Off and Restart many times, and the result is the same: the setup routine all the way to Configure Phone page to complete hang.
3) Incidentally, if I do step 1 above with the sim card in, the Configure Phone takes a lonnnng time until it eventually shows a screen saying to please insert the sim card that came with the phone and reboot. Doing so starts everything from step 1 all over again.

I seem to be in a strange state, not locked out of Sprint or Google, just locked out of making any changes to the phone other than the Recovery Mode screen. Is this what they call bricked? Ugh.

If anyone has any ideas, I’d love to hear them and would be wicked grateful!
Sounds like a NAND failure

Sent from my LG-H910 using XDA Labs
 

tem3000

Member
Aug 12, 2018
6
0
0
Boston
Thank you for the lead. I've never heard of that before so I just did some reading and it makes sense. I haven't searched on the board yet, but a quick google search doesn't bring up much in the way of fixes. (Although what's out there suggests it being a big problem with iPhones.) What is out there is based on the premise that you can download things, which I can't.

Do you know of any resources for fixing it? I searched on "lg v20 ls997 nand failure fix" but I suspect, based on how little it brought up, that another search string might be more helpful.
 

stinka318

Senior Member
Oct 6, 2014
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Have you tried to reflash any update on it......a little while back I had a g4 that was boatload unlocked did a similar thing but I got a green screen telling me that the phone has made a nandroid back then when on to complete a full brick with nothing just a paper weight.......
 

tem3000

Member
Aug 12, 2018
6
0
0
Boston
Excellent, Stinka, thank you. I'm just not sure what reflashing an update means... I'll look it up, but any advice would be appreciated.

To be honest, I don't even know what a bootloader is and have wondered if I should select it while in recovery mode. Again, I'll look it up.

UPDATE: The phone is now in a state of working as a mini-pc but not a phone. Not sure I could recreate it but I started clicking things all over the place when it was setting up. It now works with apps and gets wifi but still says Invalid Sim. I only have the Consumer Cellular sim so I can't test it with a Sprint sim to see if that would work. But with wifi, it means I can download things that could help. If that changes things and provides other options people want to suggest, I'm all ears! (and thanks again for your help)