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battery sony vgp-bps21b not detect in lab

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Misha
(@misha)
New Member

 🤠

IMG 20260313 202816
IMG 20260313 202736
IMG 20260313 202709

How to read data from which chip, can anyone tell me?

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Posted : 23/03/2026 9:33 pm
loliconic
(@loliconic)
Member Moderator

@misha 

image

Have you tried this pinout?

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Posted : 24/03/2026 6:13 am
Misha
(@misha)
New Member

 😐 I tried to short the contact Sys (it has 2.72 volts) with a 1 kilohm resistor, but it doesn't do anything... There is still voltage near the positive contact (3.05 volts)...

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Posted : 24/03/2026 7:51 pm
Misha
(@misha)
New Member
I think these two contacts /tp97 1d2/ but it's not exact
Screenshot 2026 04 27 20 46 30 024 com.miui.gallery

 

Screenshot 2026 04 27 20 46 21 737 com.miui.gallery

 

This post was modified 1 month ago by Misha
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Posted : 27/04/2026 5:51 pm
Misha
(@misha)
New Member

4 contact  R2J240   /boot

12 contact R2J240  /reset

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Posted : 27/04/2026 6:39 pm
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