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Old 01-08-2017, 07:31 PM   #41
megaraider
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Default Re: CH341a and logic level converter

Quote:
Originally Posted by wall View Post
(...) and the mentioned 1.8V SPI converter, but the software can't detect the chip, I programmed it twice anyway but the tablet still doesn't turn on, this was with the BAT+ desoldered, by the way.
(...) what puzzles me is that everywhere I looked nobody removed the battery or desoldered the chip from the motherboard and they were all successful wih those sh*tty clips.
Hope you're *not* insisting on using the 1.8V SPI converter you've posted images earlier!
As suggested along the way you should use this one:
Quote:
2nd. Forget the clip and that tricky voltage level converter;
3rd. Use the CH341A programmer and a suitable voltage level converter, e.g. this 1.8V SPI Flash adapter around 4;
later found in this tutorial they're using the some converter, btw
;
Therefore, if you're not comfortable removing the BIOS chip you should, imo:
Forget what puzzles you... get the tools you need and follow the tutorial
The tutorial mentioned above is quite complete and has detailed images.
[BAT+ has to be desoldered, and the BIOS chip has to be correctly detected in CH341 programmer before anything good can be accomplished].
.
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Old 01-09-2017, 01:24 PM   #42
wall
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Default Re: CH341a and logic level converter

I'm using the recommended 1.8V adapter, I didn't notice I had to put the clip on the latch's side, opposite of the ch341. It detects now, thank you.
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Old 01-09-2017, 02:02 PM   #43
wall
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Default Re: CH341a and logic level converter

BIG THANK YOU TO ALL WHO HELPED ME!
My tablet lives again.
Thank you thank you thank you.
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Old 01-09-2017, 04:07 PM   #44
stj
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Default Re: CH341a and logic level converter

you see it helps to follow the instructions
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Old 01-11-2017, 10:11 PM   #45
megaraider
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Default Re: CH341a and logic level converter

You're welcome. Happy to know you succeed
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