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LinusTech

Anyone got any idea how to factory reset this thing?

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Posted · Original PosterOP

Basically its got a configuration loaded on it, but there is no obvious way to reset it. 

 

I can't find anything on it that obviously contains storage. The two horizontally marked ICs are TI - so some kind of processor, presumably. The vertically mounted one is unmarked so God only knows what it is.

20200527_001942.jpg

20200527_001936.jpg

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Could the button be for reset?

that is the only way I could imagine for this thing to be correctly resetted

 

Maybe that could help ( I only recently got into DIY electronics so maybe my solution is a stupid idea)

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Posted · Original PosterOP
1 minute ago, Drama Lama said:

Could the button be for reset?

 

 

Definitely thought of that ;)

 

The one on the right is for activating it (short press) or entering pairing mode (long press). The one on the left changes the operating mode of the relays. 

 

Once it is loaded with a configuration you cannot enter pairing mode... 

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Don't you just reflash the stock firmware?


If you're interested in a product please download and read the manual first.

Don't forget to tag or quote in your reply if you want me to know you've answered or have another question.

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looks like a micro pc board. it has a usb port, so maybe can attach it to a pc and delete the old pairing file/config.


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3 minutes ago, LinusTech said:

Definitely thought of that ;)

 

The one on the right is for activating it (short press) or entering pairing mode (long press). The one on the left changes the operating mode of the relays. 

 

Once it is loaded with a configuration you cannot enter pairing mode... 

Holding both buttons together?

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Posted · Original PosterOP
1 minute ago, Smit Devrukhkar said:

Holding both buttons together?

Tried that. No dice. 

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Got a manufacturer link? One Amazon review says it has a web API. Possibly you can send it a command.

 

 

when a burglar yells at your house "alexa open the garage door" you know you went too far in home automation.

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Posted · Original PosterOP
7 minutes ago, Smit Devrukhkar said:

Try pairing it with the app. Maybe there is a very convenient setting.

Cannot pair with app without wifi.

 

2 minutes ago, foldingNoob said:

Got a manufacturer link? One Amazon review says it has a web API. Possibly you can send it a command.

 

 

when a burglar yells at your house "alexa open the garage door" you know you went too far in home automation.

Seems to be sourced through a reseller of some sort. I don't think these guys are actually the factory, unfortunately :(

 

http://www.micaccessory.com/ACCESSORIES_4.html

 

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https://notenoughtech.com/home-automation/hacking-esp8285-geekgerit-4-way-relay-controller/

Sorry for the LMGTFY answer, but while researching I found this and I think that it's the ticket.

 

EDIT:

The board in the article looks different, but the only thing different about it is the micro-USB power delivery circuitry. Everything else appears to be identical. What you hold in your hand is likely a cheaper (or ripped off) version of the board in the article.


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Posted · Original PosterOP
6 minutes ago, straight_stewie said:

https://notenoughtech.com/home-automation/hacking-esp8285-geekgerit-4-way-relay-controller/

Sorry for the LMGTFY answer, but while researching I found this and I think that it's the ticket.

That does appear to be basically the same controller. 

 

That is.... far more work than I'm willing to put into something that I spend $13 on. 

 

I will give it away to someone at the office and get a higher quality one that I know has a basic reset function for next time.. 

 

Or I might hold onto it for a fun project when I'm bored. Either way I need a much faster solution to getting my garage door working... 

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2 minutes ago, LinusTech said:

Either way I need a much faster solution to getting my garage door working... 

Have you tried the old fashioned way? I'm told that it never fails unless the batteries die.


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25 minutes ago, LinusTech said:

I need a much faster solution to getting my garage door working

Bite the bullet and talk to the OEM. My father was charged quite a bit for a new remote but it only took 5 minutes to get it working.

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1 hour ago, LinusTech said:

The two horizontally marked ICs are TI - so some kind of processor, presumably. The vertically mounted one is unmarked so God only knows what it is.

The top horizontal IC (uln2003) is a transistor array. Can't read the bottom one but seeing it goes to some connector pads it's probably some kind of tranceiver. The vertical chip in between is the microcontroller, likely with integrated EEPROM data memory.

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If you still know the SSID and password setup a new network. Those chips likely just search for the SSID and try the password they have.

eWeLink is a strong indicator that this a Sonoff device so pressing the top right button multiple time in a timely manner after powering it up might reset it.

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2 hours ago, LinusTech said:

and get a higher quality one that I know has a basic reset function for next time.

Might want to take a look at buying e.g. Sonoff's devices and flashing them with Tasmota. Sonoff's devices are hardware-wise nice and clean and well-liked, and Tasmota is an open-source firmware that gives them a lot of extra functionality.


Hand, n. A singular instrument worn at the end of the human arm and commonly thrust into somebody’s pocket.

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Posted · Original PosterOP
7 hours ago, James Evens said:

If you still know the SSID and password setup a new network. Those chips likely just search for the SSID and try the password they have.

eWeLink is a strong indicator that this a Sonoff device so pressing the top right button multiple time in a timely manner after powering it up might reset it.

Tried it. No dice.

6 hours ago, WereCatf said:

Might want to take a look at buying e.g. Sonoff's devices and flashing them with Tasmota. Sonoff's devices are hardware-wise nice and clean and well-liked, and Tasmota is an open-source firmware that gives them a lot of extra functionality.

Yeah I ordered the 4 channel R2 Pro. It's more expensive but I noticed that there are alternate firmwares for it so I'm gonna give it a shot.

 

8 hours ago, Unimportant said:

The top horizontal IC (uln2003) is a transistor array. Can't read the bottom one but seeing it goes to some connector pads it's probably some kind of tranceiver. The vertical chip in between is the microcontroller, likely with integrated EEPROM data memory.

Tried that and no dice unfortunately. Not sure why. Maybe it was just its time...

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1 minute ago, LinusTech said:

Yeah I ordered the 4 channel R2 Pro. It's more expensive but I noticed that there are alternate firmwares for it so I'm gonna give it a shot

Lemme know if you need any help. I've got several of their products running Tasmota, connected to my Openhab2-server.

 

Not that it's particularly difficult to set them up, the instructions are rather clear.


Hand, n. A singular instrument worn at the end of the human arm and commonly thrust into somebody’s pocket.

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Do we know what that unpopulated pin header is at the bottom? Maybe a UART or JTAG? You might be able to re-flash the chip with the right tool. 


ASU

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Info dump:

More information would be appreciated.

"Basically its got a configuration loaded", how? was it working in the past, if so, what changed. Is it a new board?

Spoiler

You might have to replace the firmware. Stuff like this isn't really designed to be 'reset' (that I know of)

(I think your flash mem is hidden under that RF shield (attached module))

https://github.com/arendst/Tasmota/issues/1369

https://tasmota.github.io/docs/

http://thehackbox.org/tasmota/release/

 

https://images-na.ssl-images-amazon.com/images/I/913GN4wcU2L.pdf

( unconfirmed, different board? ) https://www.itead.cc/wiki/PSB_Smart_Switch_Module

 

If the goal is to hack it / make it better, go for it. As far as using it the way its meant to be used.... idk The instruction leave much to be desired. Hope ya figure it out, best of luck.

 

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20 hours ago, LinusTech said:

That does appear to be basically the same controller. 

That is.... far more work than I'm willing to put into something that I spend $13 on. 

I will give it away to someone at the office and get a higher quality one that I know has a basic reset function for next time.. 

Or I might hold onto it for a fun project when I'm bored. Either way I need a much faster solution to getting my garage door working... 

 

Yeah... I don't blame you at all - I'd do the same, because based on information I'm reading onling about other SonoffTech devices, there may not be a "real" factory reset procedure, which kind of baffles my mind when it comes to designing a piece of electronics that takes a user configuration.

https://www.facebook.com/1194108247346790/posts/please-note-that-when-you-change-your-wifi-that-connects-with-your-sonoff-models/1489744724449806/\

https://support.itead.cc/support/discussions/topics/11000001238

https://support.itead.cc/support/discussions/topics/11000021502

https://smartlife.tech/blog/2016/08/14/sonoff-documentation/

 

Then again, we have professional companies over here with completely ridiculous factory reset procedures - and remember, GE is the same company that designs and builds nuclear power plants. I cannot imagine what their nuclear reactor emergency shutdown procedure is like. :D 

 

C bulb Factory Reset -- Regular Version

C bulb Factory Reset -- Extended Edition

 


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