Root stuck in CWM bootloop

[adamkosis]

I am planning on selling this phone soon so I went to upgrade to V5, figured it wouldn't be an issue. Then it told me I can't go from V3 to v5, but I was using the v4 stock rom that's on here. So now, I just keep going into CWM over and over and I can't restore from a backup, it does the same thing.

 

[bg4m3r]

OK, rule number 1... If your phone has custom recovery, NEVER OTA update without checking things out first. This has happened far too many times on here already by people accidentally updating for anyone to do it deliberately without checking. Sorry if I'm being blunt, but there's several threads about this already.

Since you are going to sell the phone, just use the flash tool to go back to zv3 and let it update itself to zv5. Going back to zv3 is the only way to fix it.

 

[adamkosis]

You're not being too blunt. I was stupid and didn't check. I'm sitting here doing laundry and was bored and thought I would just kill 2 birds with one stone. Now I am going to have to spend more time than I intended because I was naive. I'm doing the downgrade as I type this. Thanks for the info.

 

[dstacy90]

man i ran into the same problem. follow these instructions and you should be ok

Install latest USB drivers to computer
Go to device manager on computer
Plug the phone into computer and click on "scan for hardware changes"
----------Try to find the device. (After I flashed the zv4 rom by donjuro, the phone still showed up as "lgls740_z3" in Device Manager. Check for that under USB, COM PORTS, OR at the very top of the list)
Right click on device and go to properties.
----------it should say that the drivers were not installed.
Click the Driver tab and choose "Update Driver"
Click "Browse my computer for computer software"
Click "Let me pick from a list of device drivers on my computer"
Untick the box that says "Show compatible hardware"'
In the left column, click on ADB Google Fastboot Interface and install that driver.
When in fastboot or adb, look for Adb>Fastboot Interface (Google USB ID) at the very top of the list in Device Manager

You should now be able to boot into fastboot/ADB​

 

[adamkosis]

Took me like 30 minutes but I went back to V3, updated to v4 and then to v5. No issues. Glad I had downgraded to V3 before so I knew the process already.