SONOFF 5V - burned ?

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febpro
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Joined: 28 Sep 2017, 10:56

SONOFF 5V - burned ?

#1 Post by febpro » 28 Sep 2017, 11:01

Hi, I bought two Sonoff basic
I tried to load ESPEASY, but I used a FTDI FAKE programmer that did not allow me to complete Upload

I bought an original FTDI programmer.
Unfortunately, I did not realize that the VCC line, in this case, is not 3V3 but 5V

Now I've powered SONOFF at 5V. Programming seems to be successful, but then I can not see ESP_0
I guess I burned SONOFF

Is it possible to repair it?

thank you
Fabio

Shardan
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Joined: 03 Sep 2016, 23:27
Location: Bielefeld / Germany

Re: SONOFF 5V - burned ?

#2 Post by Shardan » 28 Sep 2017, 16:35

Hello,

if it is really burned repairing is quite useless.
It might be possible by testing every integrated circuit and swap broken circuits to new ones.
But be aware, this needs tools for SMD soldering and checking and it needs spare parts.

It might be cheaper to buy ten new sonoffs instead... ;)

Anyways: Newer sonoff basics have a bit of issues with flashing giving the same issue as result.
It might help to flash them with DOUT mode, some flash tools allow to set this.
Search the forum for that, there is a lot of discussion about it.
Regards
Shardan

LisaM
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Posts: 513
Joined: 11 Apr 2017, 18:29

Re: SONOFF 5V - burned ?

#3 Post by LisaM » 28 Sep 2017, 19:58

febpro wrote: 28 Sep 2017, 11:01 Hi, I bought two Sonoff basic
I tried to load ESPEASY, but I used a FTDI FAKE programmer that did not allow me to complete Upload

I bought an original FTDI programmer.
Unfortunately, I did not realize that the VCC line, in this case, is not 3V3 but 5V

Now I've powered SONOFF at 5V. Programming seems to be successful, but then I can not see ESP_0
I guess I burned SONOFF

Is it possible to repair it?

thank you
Fabio
Oops, clicked on the exclamation mark by accident... :oops:
I was trying to say that the esp should be able to withstand voltages up to 5.8v.
It might be DOUT or failed flash or you waited to short since it takes a couple of minutes sometimes.

Madbanana
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Joined: 16 Oct 2016, 20:48

Re: SONOFF 5V - burned ?

#4 Post by Madbanana » 28 Sep 2017, 20:19

Shardan wrote: 28 Sep 2017, 16:35 Anyways: Newer sonoff basics have a bit of issues with flashing giving the same issue as result.
It might help to flash them with DOUT mode, some flash tools allow to set this.
This was my problem with the latest units I got. Used Arduino IDE to program, worked first time. I couldn't get anything else to work properly - although in every case it reported as flashed ok.

Shardan
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Joined: 03 Sep 2016, 23:27
Location: Bielefeld / Germany

Re: SONOFF 5V - burned ?

#5 Post by Shardan » 28 Sep 2017, 21:00

Madbanana wrote: 28 Sep 2017, 20:19
Shardan wrote: 28 Sep 2017, 16:35 Anyways: Newer sonoff basics have a bit of issues with flashing giving the same issue as result.
It might help to flash them with DOUT mode, some flash tools allow to set this.
This was my problem with the latest units I got. Used Arduino IDE to program, worked first time. I couldn't get anything else to work properly - although in every case it reported as flashed ok.
A word about flashing everybody shout really note:
At this time it is not possible to "read back" when flashing an ESP!
If your flash tool says "Flashing completed successfully" (or whatever), this does NOT say the firmware is completely flashed!
It just says that there was no interruption in the data flow to the ESP-Board.
It does not say that everything arrived correctly in the flash rom.

Maybe we should mention this in the wiki (if anybody reads that :) )

On another note:
I've seen often that some remnants of old firmware stays in the flash disturbing ESPEasy.
Sometimes it helped to flash a "null" file over the whole flash size to really delete the existing firmware before
reflashing a new one.

Regards
Shardan
Regards
Shardan

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grovkillen
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Re: SONOFF 5V - burned ?

#6 Post by grovkillen » 28 Sep 2017, 21:03

Shardan wrote: 28 Sep 2017, 21:00
Maybe we should mention this in the wiki (if anybody reads that :) )

Regards
Shardan
Yes, let's do that. But it seems that many friends forget to read the wiki....
ESP Easy Flasher [flash tool and wifi setup at flash time]
ESP Easy Webdumper [easy screendumping of your units]
ESP Easy Netscan [find units]
Official shop: https://firstbyte.shop/
Sponsor ESP Easy, we need you :idea: :idea: :idea:

Shardan
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Re: SONOFF 5V - burned ?

#7 Post by Shardan » 28 Sep 2017, 21:07

grovkillen wrote: 28 Sep 2017, 21:03 Yes, let's do that. But it seems that many friends forget to read the wiki....
Pssst. Wiki is a secret - as the search function of the forum is....

SCNR

Shardan
Regards
Shardan

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grovkillen
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Re: SONOFF 5V - burned ?

#8 Post by grovkillen » 28 Sep 2017, 21:13

Shardan wrote: 28 Sep 2017, 21:07
grovkillen wrote: 28 Sep 2017, 21:03 Yes, let's do that. But it seems that many friends forget to read the wiki....
Pssst. Wiki is a secret - as the search function of the forum is....

SCNR

Shardan
:lol:
ESP Easy Flasher [flash tool and wifi setup at flash time]
ESP Easy Webdumper [easy screendumping of your units]
ESP Easy Netscan [find units]
Official shop: https://firstbyte.shop/
Sponsor ESP Easy, we need you :idea: :idea: :idea:

febpro
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Posts: 3
Joined: 28 Sep 2017, 10:56

Re: SONOFF 5V - burned ?

#9 Post by febpro » 30 Sep 2017, 13:35

I have tried many things
anything. Does not work

I've read SONOFF basic posts with the same problems
I did ERASE
I loaded FW
OK
my configurations are:
Image

Image

Image

Image

Image

I think it is brik

ciao Fabio

febpro
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Posts: 3
Joined: 28 Sep 2017, 10:56

Re: SONOFF 5V - burned ?

#10 Post by febpro » 01 Oct 2017, 14:31

I have solved
2 SONOFF basic powered for various tests at 5V are OK
now they work at 3.3V

this means SONOFF can support 5V for short periods! !!!

I followed the guide:
viewtopic.php?f=5&t=3386&start=10#p18240

Now 2 SONOFF working

thank you
ciao
Fabio

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