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[Q] Moto G stuck; recovery fails from boot menu: Can I reflash the stock firmware?

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By carefulcat, Junior Member on 11th May 2015, 07:24 PM
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I have a Moto G that has gotten "stuck", if that's a good description. If I start it, the initial Moto splash screens go fine and then it becomes a dark screen but backlight On and just stays stuck there for ever. (Is this what is called a boot loop? Not sure)

By using the Power + Down Vol key combo I did manage to get it to the boot menu. Unfortunately the Recovery Option there does not work. Shows a quick Moto bootup splash screen, then Says "Boot up failed" and falls to the boot menu again.

What's my best bet to recover from this?

I did install adb + fastboot on my laptop & then connected the Moto G with a USB Cable. fastboot seems to work. I could get the phone to reboot, and some other basic diagnostics. e.g. "fastboot oem get_unlock_data works". "fastboot devices" also shows my device Serial Number correctly. But I want to be careful before I issue any further erase or flash commands so I thought it best to post on here. What is the logical next step in the debug?

"adb devices" did not succeed.
The phone had the original Google / Motorola software so far and I'd never even attempted to flash it etc. Only whatever automatic updates got pushed by Google / Moto / Carrier over the network. Right before this happened I was in a call and got a bunch of pop ups saying Application xxx was being shut down.

The phone is out of warranty. It is still locked, but when I enter the details on the Moto Website it says it can be unlocked. So I can proceed to get the unlock codes etc. if that helps.

The exact SKU is XT1033. Boot menu says (Version 41.13; Battery OK; Device is locked; Status Code 0) if that is of any help. Was a Dual SIM phone on a GSM Carrier.
 
 
19th May 2015, 05:52 AM |#2  
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Tried issuing the commands
Code:
fastboot erase cache
fastboot erase userdata
Both don't seem to have helped at all.

Any other ideas?
19th May 2015, 06:30 AM |#3  
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To flash anything you first need to unlock bootloader. Doing that erases all your data including internal memory. Then you can flash a recovery & a custom rom.
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19th May 2015, 07:10 AM |#4  
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Quote:
Originally Posted by legolas06

To flash anything you first need to unlock bootloader. Doing that erases all your data including internal memory. Then you can flash a recovery & a custom rom.

Thanks @Legolas!

I did not realize that. So I guess if I just tried a flashboot flash command it would fail since my phone is not unlocked at the moment.

Luckily I can get the unlock code from the Motorola site. I will proceed to do that then first and subsequently try all the other steps needing flashing.
2nd June 2015, 12:21 AM |#5  
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What happened? Did you manage to boot it up?
4th June 2015, 05:06 AM |#6  
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@carefulcat : i have a similar problem as a well.let me know if and how you managed to fix it
4th June 2015, 08:09 AM |#7  
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Quote:
Originally Posted by Lucariel

What happened? Did you manage to boot it up?

@Lucariel

Sadly not. It is still lying dead.

If you have any ideas let me know!
4th June 2015, 08:13 AM |#8  
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Quote:
Originally Posted by ravibhat

@carefulcat : i have a similar problem as a well.let me know if and how you managed to fix it

No luck yet. If you find any ideas let me know!
4th June 2015, 08:15 PM |#9  
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@carefulcat :
Check out my thread @ http://forum.xda-developers.com/moto...-mode-t3122492
The only difference I find from what you've shared is that both of us have different bootloaders.
Let me know if this is true.
4th June 2015, 08:50 PM |#10  
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Quote:
Originally Posted by ravibhat

@carefulcat :
Check out my thread @ http://forum.xda-developers.com/moto...-mode-t3122492
The only difference I find from what you've shared is that both of us have different bootloaders.
Let me know if this is true.

Indeed. Very similar problems. Could be identical.

I've, in fact, even erased via fastboot & unlocked via motorola's site. Hasn't helped so far.

I haven't had the stomach to download a 500 MB stock firmware yet.

Who do you think our bootloader is different?
4th June 2015, 09:12 PM |#11  
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Smile
@carefulcat :
Well,I am on an unlocked unrooted Android L 5.0.2 XT1033 Asia Retail Edition (upgraded via OTA) which has Bootloader version 41.18.
You've just cleared the ROM it seems.
Unlocking the bootloader will wipe off all the data from your device.
It seems yours is still locked,you have the unlock code but didn't use it.

Which OS did you have?Exact version,region and type of upgrade.
And which commands have you used till now?

If you're clear with the basics try stocking a Stock Flash ROM (depending on your bootloader and previous OS) or custom recovery like TWRP or CW.

Quote:
Originally Posted by carefulcat

Indeed. Very similar problems. Could be identical.

I've, in fact, even erased via fastboot & unlocked via motorola's site. Hasn't helped so far.

I haven't had the stomach to download a 500 MB stock firmware yet.

Who do you think our bootloader is different?

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