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How to Recover Data from Boot Loop Defect Device (Tested it works!)

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By celsius0010, Senior Member on 20th January 2016, 10:49 PM
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Thank you to the members on here, reddit, and other Android sites for the helpful insight. I did tons of research because I could just not stomach losing everything on my phone. I'm actually glad this happened because I will never be this careless again. I've been coming on this site to mod my phones since the PPC-6700 and have never heard of this issue. But SD cards fail and drops happen so that's no excuse.

I was able to get my defective phone to boot by freezing it for about 15 minutes in large freezer, and letting it run inside the freezer. I have heard of people being able to recover data by freezing the batteries and one person suggested to run your phone in the freezer. I tried it and it worked.

Before I tried the freezer method I was only able to get to the Android is Upgrading screen maybe 10 times out of over 100 boot loops. The farthest I ever got on that screen was 8 out of 101 apps. With the freezer method it fully booted on the first try.

First I froze the battery alone for maybe 20 minutes. Then I placed the battery in the phone and tried booting into recovery. It didn't work. So I removed the battery, put it back in and and let both of them sit together for about 15 minutes in the freezer. Then I returned and the phone fully booted on the first try. I tried booting into recovery from Nandroid Manager but that just reset the phone. Since it seemed stable and I wanted to keep the phone as cold as possible I just used My Backup Pro and Titanium Backup to back everything up.

I honestly gave up and I am sending my phone to LG today, so this was literally my last resort. Hope this helps someone.
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23rd January 2016, 04:46 AM |#2  
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Confirmed, sort of. After about 15mins my phone booted up, but froze again and restarted. Hoping with a few more minutes of freezing it stays put so i can transfer my TB to my SD card (I though it was already there :\)
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23rd January 2016, 05:42 PM |#3  
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Thank for useful information. It's happened to my phone too keep rebooting itself then after 100 reboot I got the home screen and use cable to copy all my stuff in laptop . I'm sending mine to tmo store

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23rd January 2016, 09:17 PM |#4  
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Quote:
Originally Posted by hollywood084

Confirmed, sort of. After about 15mins my phone booted up, but froze again and restarted. Hoping with a few more minutes of freezing it stays put so i can transfer my TB to my SD card (I though it was already there :\)

I tried it again to get a nandroid backup and merely freezing the phone did not work. I had to let it run in the freezer, I got the best performance with the back off and the phone resting on a bag of frozen vegetables. The second time I had two reboots but that may be because I didn't get the phone quite as cold as the first time I did it.

Phone is sent off to tmobile and the replacement is working great.
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26th January 2016, 10:05 AM |#5  
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Thanks for the tip, it helps! Confirmed working, left my phone 20 minutes in the fridge => boot but freeze during LG animation (not cold enough)
left the device in the freezer for a moment => success boot, but freeze minutes later once it gets warmer

So... there is a problem with some hardware pieces..
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2nd February 2016, 02:25 AM |#6  
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It still took dozens of tries to get everything working over a couple of days but using this method I was able to backup all my data and even wipe the phone! Just keep trying and keep it cold in the freezer. Also, charge your battery to 100% constantly rebooting drained the battery quickly. The CPU gets hot even when it looks like its running fine, keep it in the freezer while it does its commands.
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7th February 2016, 02:23 PM |#7  
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I got the dreaded bootloop back in Dec. Tried the freezer method a few times to recover data, but I still get the bootloop. I got to the T-Mobile screen once, but every other try I got stuck at the LG logo.

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7th February 2016, 02:40 PM |#8  
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For how long did you put your phone in the freezer?
7th February 2016, 05:20 PM |#9  
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Quote:
Originally Posted by bel57

For how long did you put your phone in the freezer?

First few times like 15 to 20 mins. Then a little bit longer on the next few attempts. I thought it might work if the phone was a little colder, but still no luck.

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7th February 2016, 06:16 PM |#10  
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It's not *a little*. First time it succesfully booted once put 30-45 mins in freezer, but not enough, since it started freezing after a few minutes of use.

I managed to retrieve my data after leaving it for at least 1-2 hours in freezer.
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12th February 2016, 07:13 AM |#11  
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Going to shop to get back my device and try it..
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bootloop, brick, hard, lg g4, loop

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