[Android Q&A, Help & Troubleshooting] sasbi:
I have a phone Ulefone Note 8. It is not my main phone, but I use it occasionally and I have some important data on it.

One time, one of my recordings, that I had on my phone, didn't close well so the file was not saved, I wanted to recover this file later. So, I stopped using this phone for a while. But after I got back to implement data recovery, I was unable to get into my phone, because I forgot my pattern lock. I have tried many combinations, so now I have to wait more than 3800 seconds (this is more than an hour between my lock pattern retries and this time is increasing).

Because of that, I am looking for another way to get into my phone.

I have tried all programs for unlocking my screen lock without losing data on my phone (without hard reset, factory reset).

I am unable to connect to my phone to PC (PC recognize it, but the device is anauthorized, because of the lock, I cannot confirm the connection).

I think that my phone has USB debugging enabled, but there is a problem, that it has set “charging mode” as a default option, but I can't change this option to MTP mode. In order to change this mode, I have to lock my screen. Because of that problem I am unable to use ADB, because the device is unauthorized (because of the screen lock). So. This is also no go situation.

I have also tried to use Android Recovery Mode. I tried to install zip TWRP via Apply update from SD card. No luck, because Signature verification failed.

I tried to install Aroma File Manager. The same problem. I think this is because the Recovery version of my phone is Stock, the phone is not rooted.

I tried to install SU power the same way. No luck also.

The phone has also Fastboot. I tried to boot TWRP image, but image for my phone is too large. If I use some smaller TWRP image file, I get error that I cannot do this command on locked phone (not allowed in locked state).

Now I am out of options. I don’t want to wipe data. I don't want to do hard reset. I know, that this is quick solution, but I don't want to lose data on my phone.

Is there any way to enable MTP mode on my phone remotely?

Or is there some hack to hack into my phone forcefully without losing my data.

Is there some way to do a backup of my files from my locked phone?

Is there a way to save the most of my files, even if I had to perform hard reset?

I would do hard reset, if I would know that my phone could be recovered by a recovery tool without any risk.

Another info. My Ulefone Note 8 phone is using Androd 10. Go edition.

Is there a way to forcefully flash only CWM or TWRP on the locked phone without losing any data from my phone.

Something else. I tried to use Find my device on Google. And Google is able to find my phone, but there is not option just to remove lock, there is only option to erase all data on my phone.

Something else. Is there some program similar to Aroma File Manager, that could remove gesture.key from my phone, but something, that can be opened from Android Recovery on Pattern Locked phone? Note something. I am unable to change my phone settings to MTP because of the pattern screen lock.

Something else. Is it any way to reset the counter of pattern retries so I would be able to draw patterns without long waiting time. Now I have to wait more than one hour to retry another pattern and turning phone off and back on does not help. I know, that on previous Android editions the counter reset itself after turning the phone off or removing the battery, but in this phone (Ulefone Note 8 with Android 10. Go edition.) this is not possible. Another info. This phone has unremovable battery, so I cannot quickly completely remove the power from it.

Is there any hack to unlock my phone without losing data.

I would appreciate any help.