I found out you can downgrade from ZV4 to ZV3 by following the steps below:
DISCLAIMER: i am NOT responsible for ANY data lost. ALWAYS backup your data first.
OK now the good stuff....
1. Put phone in download mode ( Phone off, vol up while plugging in usb from PC).
2. Start LGUP and select the ZV3.tot file
3. Make sure you see a com # and phone model
4. depending on what you want, select "refurbish" to do a factory data reset or select "update" if you wanna leave your data alone. (i tried both methods and it worked without this issue).
4. At the bottom where it says BIN, select it, at which point you should see 3 dot on the right, select it and choose the ZV3.tot file, then hit start and wait for the magic.
DISCLAIMER: i am NOT responsible for ANY data lost. ALWAYS backup your data first.
OK now the good stuff....
1. Put phone in download mode ( Phone off, vol up while plugging in usb from PC).
2. Start LGUP and select the ZV3.tot file
3. Make sure you see a com # and phone model
4. depending on what you want, select "refurbish" to do a factory data reset or select "update" if you wanna leave your data alone. (i tried both methods and it worked without this issue).
4. At the bottom where it says BIN, select it, at which point you should see 3 dot on the right, select it and choose the ZV3.tot file, then hit start and wait for the magic.
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