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Root How to: Enable fastboot and unlock bootloader, No flashing needed. WORKING.

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I did everything, but now when i try to fastboot restore the download mode it says cannot open laf.img.

what do i do?
 
danhalen1 said:
laf.img should be fine in /sdcard thats where mine is anyway. Ive done it back and forth a few times without fail. Maybe you named it differently when you backed it up?
Click to expand...

i checked my sd card and it is titled laf.img.

renamed to laf.img and still didnt work
 
blondgod said:
i did that and it did work. and in the link you provided i just copied and pasted the exact lines to use for the adb
Click to expand...

I have the "laf.img." file located in /sdcard
I cannot get "fastboot flash laf laf.img." to work I keep getting
-bash: fastboot/flash: No such file or directory
any ideas on what I need to do to restore download mode?

edit/
I messed around with the ". "on the end of the laf.img. and now I get
"target reported max download size of 536870912 bytes
error: cannot load 'laf.img.': No such file or directory"
 
danhalen1 said:
Proof:
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: false
(bootloader) Charger screen enabled: false
OKAY [ 0.012s]
finished. total time: 0.013s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem unlock
...
OKAY [ 0.004s]
finished. total time: 0.005s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: true
(bootloader) Charger screen enabled: false
OKAY [ 0.013s]
finished. total time: 0.014s

C:\Program Files (x86)\Minimal ADB and Fastboot>

This is all that differs after running fastboot oem unlock
2KZEyew.png



How it works:
[GUIDE] Fastboot for L90 D415 | Optimus L90 | XDA Forum

Follow this exactly. WHEN YOU ARE DONE IN FAST BOOT MAKE SURE TO RESTORE THE LAF.IMG
fastboot flash laf laf.img

I made sure to do this so there were no unintended consequences. You delete the laf partition, which forces fastboot mode and takes the place of download mode. I dont know what would happen if you didnt restore the laf partition before exiting fastboot.

EDIT: To correct from before, you can skip flashing the laf.IMG back before exiting fastboot if you wanna leave fastboot mode enabled instead of download mode. But be careful as without download mode you might not be able to recover from a brick.

So think about what you feel is more useful. In fastboot you cannot flash /system/ back because it is too large.

Disclaimer: This is what i did and it worked. Try this at your own risk, always assume anything you do on your phone will result in a brick and it will be unrecoverable.
Click to expand...

This played a major role in bricking my new Volt. Good thing I followed the instructions were perfect and worked exactly (sarcasm. Heavy sarcasm)
 
Well that's too bad you had troubles making and restoring the laf IMG. Not being able to restore the laf won't result in a brick. A copy of my laf.IMG is linked below. Don't blame me for trying and successfully unlocking the bootloader for our phones and then sharing how I did it on a public forum while warning you it could result in a brick.
https://www.dropbox.com/sh/0s5v5ztfg0rcahf/AADidcjluL-lrRxMfLxUP1uQa/laf.img
 
danhalen1 said:
Well that's too bad you had troubles making and restoring the laf IMG. Not being able to restore the laf won't result in a brick. A copy of my laf.IMG is linked below. Don't blame me for trying and successfully unlocking the bootloader for our phones and then sharing how I did it on a public forum while warning you it could result in a brick.
https://www.dropbox.com/sh/0s5v5ztfg0rcahf/AADidcjluL-lrRxMfLxUP1uQa/laf.img
Click to expand...

Great work.i didnt even expect this phone to get the bootloader unlocked after coming from the f3 .seems to me u solved a huge problem and u deserve many many thanks.so thanks.hope your work on recovery progresses.😎
 
danhalen1 said:
Well that's too bad you had troubles making and restoring the laf IMG. Not being able to restore the laf won't result in a brick. A copy of my laf.IMG is linked below. Don't blame me for trying and successfully unlocking the bootloader for our phones and then sharing how I did it on a public forum while warning you it could result in a brick.
https://www.dropbox.com/sh/0s5v5ztfg0rcahf/AADidcjluL-lrRxMfLxUP1uQa/laf.img
Click to expand...

All I am saying is I followed the instructions exactly, and it played a role in the bricking of my old Volt. I do appreciate your work as I did a lot of work on my F3 for this stuff.

Post from my new LG Volt
 
donjuro said:
Are you sure you followed them exactly? I've had much success with this.
Click to expand...

I copied and pasted exactly. If you look at the link you gave, it has a period on the end of it, and I copied the period.

I don't blame you and I don't mind I just took my phone back to best buy and got a new one for free.
 
I didn't post that link. I never even restored download mode because I use Linux so it's useless to me, I need fastboot.
 
You know I was wondering and got curious. The aboot changes (flag) when you unlock the bootloader, right? Do you think people could just take that aboot and flash it via adb so they don't have to delete their laf partition?
 
donjuro said:
You know I was wondering and got curious. The aboot changes (flag) when you unlock the bootloader, right? Do you think people could just take that aboot and flash it via adb so they don't have to delete their laf partition?
Click to expand...

That's a good idea, it might work. That would possibly stop my problem from happening again
 
donjuro said:
You know I was wondering and got curious. The aboot changes (flag) when you unlock the bootloader, right? Do you think people could just take that aboot and flash it via adb so they don't have to delete their laf partition?
Click to expand...
Well they could, but flashing the aboot can be far riskier in that if it doesnt work, your phone is totally done for.
 
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