Seeking Firmware for Selecline S2-19 Tablet Stuck in Boot Loop - PA190615002I0600-M1528I-02R

Dear everyone!

I'm here to get help with a serious problem. My mom's Selecline tablet gets an infinite loop error. The tablet can turn on, off, but never leaves the boot up screen. I figured out the only way to save the tablet is to reinstall firmware and restart as "factory reset". I know how this works with mobile devices, but this tablet doesn't have Volume or home buttons, so the only solution is to reinstall firmware. The only problem I can't find out what is the firmware number I need for it. This is why I ask for help. I'd be really grateful if someone can help, upload or even give a link where I can get a good firmware for this tablet. I made screens from every part, and put here every info I have. But I'm really not a tech guy. Thank you for any help in this!
I get this with code reader, not a link:
PA190615002I0600-M1528I-02R|190722|396

Enter Recovery Mode. Turn off the tablet, press and hold Vol + and Power when the logo appears, release the Power button but keep holding Vol +. If the key combination does not work, check with the Vol- key.

Send the picture of the whole motherboard.

gradek83 wrote:

Enter Recovery Mode. Turn off the tablet, press and hold Vol and Power when the logo appears, release the Power button but keep holding Vol . If the key combination does not work, check with the Vol- key.

Send the picture of the whole motherboard.

I can't speak Polish, I translated it. The problem is that there are no volume buttons on the tablet, but here are also motherboard shots. Thank you for even trying to help me!

Use this button instead of VOL + Vol-

gradek83 wrote:

Use this button instead of VOL Vol-

I do not have this. this is what mine looks like

Try this option.

gradek83 wrote:

Try this option.

sorry I didn't have internet. I have tried, but to no avail. logo screen, then black screen for 3-5 seconds, after the logo reappears. I cannot start the recovery option, I need to reinstall the firmware. But how do I know I'm using the right one? : - /