[TR6260S1/FL-M61 V2] WiFi Smart Switch how to change the firmware?

Hello, I own the relay shown in the pictures. I have soldered out the WiFi chip to show it and to try to change its firmware. Now the question is how and with what to go about this? I am doing this for the first time I can't find any information on this. Is it possible to upload Tasmota or SUPLI? I am interested in what can be uploaded here, not a replacement for another chip. USB to TTL I have a YP-01, thank you in advance for any hints.

Board:



WiFi chip:


Additional information:
Link .

Hello, I'm afraid this is a completely new chip, which hasn't appeared even once on our Electrode list yet:
https://openbekeniot.github.io/webapp/devicesList.html
A quick search on Github also shows that there is no SDK for it, or at least that's my impression.
EDIT: This is the only result from the Github search:
https://github.com/Akeeta/Akeeta-SDK-TR6260
but very poor there...

At this moment I don't see the possibility to change the firmware of this module. The only thing left is to check the pinouts and do a replacement with ESP02S or similar (pinout equivalent of TYWE2S, WB2S, CB2S...)

https://templates.blakadder.com/ESP-02S.html

Quote:

This module can replace modules such as: CB2S, FL_M99_V1, TYWE2S, TYZS6, TW-02, WR2, WB2, WBR2, WR2E, WB2S, WA2, XT-BL02

Of course when replacing you would also have to check that the pins match for sure, paying special attention to RST and so on.

You can keep the old WiFi module, maybe you can find an SDK or something new will appear.... you can also try to connect to it with the UART and at least collect its log (if it prints any log on the UART), I don't know, but in the log maybe there would be some additional information about the SDK used.

Added after 3 [minutes]:

There is something about the SDK, but it's in Chinese...
https://github.com/Akeeta/Akeeta-SDK-TR6260/b...0-SDK%E4%BD%BF%E7%94%A8%E8%AF%B4%E6%98%8E.pdf

@dawkoh there is now a backup and flash tool and an OpenTR6260 firmware that can be flashed to these modules.

If you're able to follow the new guide to back the existing firmware, that would be very useful.

https://www.elektroda.com/rtvforum/topic4093752.html

>>21400373 Hello my friend . Have the same chip on my bench soldered and i am trying to dump the firmware. Can you tell which is the fp14 pin from the schematics in order to enter dump mode ?

to confirm, you have an FL-M61 V2 module, exactly as seen in the first post?

Added after 46 [minutes]:

if so, I don't have this module to be 100% sure, but I think this is true:


Added after 30 [seconds]:

obviously, please take a backup first

Exactly. Desoldered it from the smart switc in order to flash it

A the gp14 was up there. Will try to dump it and post it.

leon22heart wrote:

A the gp14 was up there. Will try to dump it and post it.

cool

out of interest, is your device with this module a new purchase? Temu, Ali? Do you have direct link please to product

>>21846540 it's a 2024 aliexpress purchase that i was using first with tuya , next with local tuya and now i hope with openbk. Have 2 of these.

Added after 4 [hours] 24 [minutes]:

Needed a clarification . In order to enter uboot-uart mode should i solder GPIO14/TOUT2 to ground or vcc and powerup ?

leon22heart wrote:

Needed a clarification . In order to enter uboot-uart mode should i solder GPIO14/TOUT2 to ground or vcc and powerup ?

p.kaczmarek2 wrote:

GPIO14/TOUT2 needs to be grounded at power-on

https://www.elektroda.com/rtvforum/topic4093752.html

Added after 3 [minutes]:

I happen to be playing with TR6260 module HLK-M20 now. EN header on this ESP adaptor maps to IO14. Grounding it to get into download mode.

>>21846810 So if i am not wrong its ground to GPIO14/TOUT2 and boot . Tried and can not enter uboot-uart . Will check again the uart logs .

with IO14 grounded at power-on and if you watch TX at 57600 baud you should see this printed



then you should be able to read/write/erase

Hello . Managed to extract firmware . Can anyone check if valid so that i proceed to flash open bk ?

leon22heart wrote:

Can anyone check if valid so that i proceed to flash open bk ?

yes. 1 moment pls

Added after 15 [minutes]:

it definitely boots

>>21846875 Happy to have helped . Now starts the device config . Will post findings.

no pin assignments to extract though





looks like Easy Flasher's "em_sys_env" mapping needs an adjustment

Added after 25 [minutes]:

IO3 looks to be your button.

boot log from backup:


Added after 37 [minutes]:

dump reset and added to collection https://github.com/openshwprojects/FlashDumps/pull/63

schema: 000003w2v6

Found so far



How find TglChanOnTgl ?

leon22heart wrote:

How find TglChanOnTgl ?

should it have one? if you put Btn to channel 1 it should operate with relay.

>>21850430 I believe it does cause it had it in the tuya app. Well for me as long as the relay has been found i am okay , but i wanted to complete in order to include it in the template database.

understood. I only see 1 thing to toggle in the Tuya app though when paired.



add: https://github.com/OpenBekenIOT/webapp/compare/main...divadiow:OpenBekenIOT-webapp:main

>>21850654 the toflchanontogl isnt the equivalent of the relay remeber last status \ on \off ?
This is a photo from my 2nd switch with the same chip. If i am wrong then the template is complete.

ah I see. I think that function is served by setting -1 as seen in 'Configure Startup' for the channel required