Hello,
As we know there are many H90021w firmware user found their phone is not working as it should be. There are some issues like fingerprint sensor is not working, cant uninstalling apps, etc. I found the only way to solve is by updating the firmware to 21z or 22b only. I've try to find in on the net throughly only to find after the v21w firmware, newer firmwares are stored in the AT&T server, not on the LG server anymore. And the only way to get the OTA is by using an AT&T simcard and in the US. This definitely a problem to those who live outside the US just like me.
And it's not possible to downgrade, trust me, maybe I've try everything that possible including taking out the emmc from the board, erasing everything and put the lollipop firmware in it. Simply not working. Mind you, when I put that emmc (lollipop) on another board (vs990 too) which were originally lollipop and never use the 21w firmware, it's working fine.
So basically updating to 21z or 22b is the only way. Also if there's any 21w user and the phone is normal, maybe you can help too.
All we need is to put the phone on qualcomm 9008 mode, copy some partitions, zip it and upload to somewhere. It's perfectly safe as I did it many many times to backup my phone and some friend's phones (v10 and G4). We'll exclude the imei partition and userdata, so it will be safe for you.
This method is also useful for other purposes. You can full backup your phone and restore it if theres anything happen. For those who have bootlooped phone, you can backup it and restore to another working phone and you'll have almost the same state of the phone. Of course the type of the phone should be identical and the arb is ok. If the arb is stil 0, you can even switch the carrier to Tmobile.
This could be used for many purposes, but let's get this one done first. If its working, I'll put it in a new "how to" thread so many will be helped. We can also arrange donations for those who help. We can discuss it by pm.
So hopefully someone can help and we can discuss on private message about the method in details.
Thank you
As we know there are many H90021w firmware user found their phone is not working as it should be. There are some issues like fingerprint sensor is not working, cant uninstalling apps, etc. I found the only way to solve is by updating the firmware to 21z or 22b only. I've try to find in on the net throughly only to find after the v21w firmware, newer firmwares are stored in the AT&T server, not on the LG server anymore. And the only way to get the OTA is by using an AT&T simcard and in the US. This definitely a problem to those who live outside the US just like me.
And it's not possible to downgrade, trust me, maybe I've try everything that possible including taking out the emmc from the board, erasing everything and put the lollipop firmware in it. Simply not working. Mind you, when I put that emmc (lollipop) on another board (vs990 too) which were originally lollipop and never use the 21w firmware, it's working fine.
So basically updating to 21z or 22b is the only way. Also if there's any 21w user and the phone is normal, maybe you can help too.
All we need is to put the phone on qualcomm 9008 mode, copy some partitions, zip it and upload to somewhere. It's perfectly safe as I did it many many times to backup my phone and some friend's phones (v10 and G4). We'll exclude the imei partition and userdata, so it will be safe for you.
This method is also useful for other purposes. You can full backup your phone and restore it if theres anything happen. For those who have bootlooped phone, you can backup it and restore to another working phone and you'll have almost the same state of the phone. Of course the type of the phone should be identical and the arb is ok. If the arb is stil 0, you can even switch the carrier to Tmobile.
This could be used for many purposes, but let's get this one done first. If its working, I'll put it in a new "how to" thread so many will be helped. We can also arrange donations for those who help. We can discuss it by pm.
So hopefully someone can help and we can discuss on private message about the method in details.
Thank you
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