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Solder points BLE 3.2?

Posted: Sat Jun 11, 2022 8:46 am
by probablylost
Hello.
I have a Mi Pro2 manufactured 02/21 that I want to downgrade with st link. It has a V3.2 BLE I am having trouble finding a picture of solder points? it does not have the three points on the right of the board but has them above the switch, same? And does a resistor need to be removed on this model? thank you!

Re: Solder points BLE 3.2?

Posted: Sat Jun 11, 2022 10:56 am
by probablylost
Me again

So I thought i'd give it a go and tried those points on my BLE (1.5.7) and found then removed the c2 resistor on the back of the board.

When running the blePROrec script it cannot connect to target. So I guess i've got something wrong. STlink is powering the device and drivers installed.
Any help would be appreciated. Thanks

Re: Solder points BLE 3.2?

Posted: Wed Jun 15, 2022 3:49 pm
by Janebo81
Hello, I was sending you a email, I was not possible to post pictures here, I also have a copy of MiDu-Flasher_v1. 0.4 for automatic downgrade from ST-LINK if you need

Re: Solder points BLE 3.2?

Posted: Wed Jun 15, 2022 9:39 pm
by Valichella
Can you send it to me too, please. Also want to downgrade BLE from 1.5.5 but didn't find how to connect my BLE to st-link.

Re: Solder points BLE 3.2?

Posted: Fri Jun 17, 2022 9:33 am
by oquska
Solder pins are seems okey but i wasn't sure about c2 transistor. Can anyone successfully flashed this Ble point us to right directions?

Image
Image

Re: Solder points BLE 3.2?

Posted: Thu Jun 30, 2022 11:05 pm
by mober
I have been able to downgrade BLE 157 to BLE 090 the BLE_V3.2 board with a ST-Link, removing this capacitor marked in the image.
Image

Re: Solder points BLE 3.2?

Posted: Sat Jul 02, 2022 10:19 am
by misiozol
same here works no issue .

Re: Solder points BLE 3.2?

Posted: Tue Jul 05, 2022 8:46 am
by Gacunme
drift boss
Hello, I was sending you a email, I was not possible to post pictures here, I also have a copy of MiDu-Flasher_v1. 0.4 for automatic downgrade from ST-LINK if you need
Can you send it to me too? [email protected]

Re: Solder points BLE 3.2?

Posted: Tue Sep 20, 2022 10:49 am
by Mykola
Нужно ли по процедуре перекрошивки впаять на место этот конденсатор ?

Is it necessary to solder this capacitor into place according to the re - crumbling procedure ?