[Solved] Lenovo Tab2 A8-50L Bricked After ROM Upload via SP FlashTool - USB Ammeter, MediaTek Drivers

Good morning,
I'm assuming a thread on the tablet "Lenovo tab2 a8-50L MT: ZA04".

Description of the problem:
After uploading the ROM via SP FlashTool (ROM symbol: Tab2-A8-50LC_S000026_150805_ROW) the device became a brick. The usb ammeter shows max to 0.13A (previously around 1A), in the device manager previously detected as "mpt device", now as unknown device, black image no response to anything. MediaTek drivers are not working. The system I am running on is Win 7 Ultimate.

Please help, it seems to me that the ROM I found somewhere on the net, unfortunately, damaged the tablet.

Thank you in advance and best regards.

http://darmowyinternet.net/forum/temat-poradn...-telefon-po-wgarcie-zlego-romu-test-point_383
Here you have the firmware: https://firmwarefile.com/lenovo-tab-2-a8-50l

Rom downloaded, unfortunately option # 1 from the guide did not help.
Cable with resistor made, one end soldered to ground.

Question 1: Where is the test point?
Question no. 2: Maybe a bit silly, but this is the first time I do it. Is it done with a battery?
I attach photos
best regards

I do not see such points here, you would have to disassemble the tablet more and insert more detailed photos.

Are the photos enough? Do any element be done in more detail?
best regards
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I ordered a new disassembly board - cost about PLN 100 for a 3-month warranty. Thanks for trying to help

New motherboard from the auction site