[FIX] Issue antminer l3+ (boards not recognized, bad fw flash , etc)

Here's the issue you may have , hashboards are not recognized, anymore

/!\ please read carefuly /!\

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Firmware Flash
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Here's a fix solution to rewite PIC's of L3+ after some of us flash bad firmware to their L3+.

Many has recovered 3 boards , some all of it

Thanks to Blissz for this fix (please do not pm him for this )

1. Download File
(re-up)

Quote

WARNING: Don't flash this to anything else as a bricked L3(+) caused by flashing a wrong firmware version, as this might harm a working L3(+).
MEGA
or
1fichier

2. Plug only 1 board from chain 0 (white cable on the left) as you can see under , you can plug upper hashboard 1st

3. Go to system -> Upgrade -> "Flash new firmware image" choose the file downloaded to flash new firmware and click flash image
wait for reboot.

If kernel logs get this ... 0xcc , wait after you see it (5 minutes, to see again 0xcc or most of time 0x3 and then it will fix your board) other way try to connect an other boards and restart from "3"

Quote

Dec 17 14:09:30 (none) local0.warn cgminer: Started cgminer 4.9.0
Dec 17 14:09:30 (none) local0.notice cgminer[377]: detected at /sys/class/gpio/gpio51/value chain 0
Dec 17 14:09:30 (none) local0.notice cgminer[377]: detect total chain num 1
Dec 17 14:09:30 (none) local0.notice cgminer[377]: i2c init ok
Dec 17 14:09:32 (none) local0.notice cgminer[377]: Chain 0 PIC Version 0xcc
Dec 17 14:13:45 (none) local0.err cgminer[377]: Blisssz: Chain not found 1
Dec 17 14:13:45 (none) local0.err cgminer[377]: Blisssz: Chain not found 2
Dec 17 14:13:45 (none) local0.err cgminer[377]: Blisssz: Chain not found 3
Dec 17 14:13:51 (none) local0.notice cgminer[377]: Chain 0 PIC Version 0x3
[...]

you will see some logs like this , PIC's is currently writing.

Code:

Dump IIC Data:[41][98][0][0]@ChainID:[0], Chip[C9]

wait logs "miner start and switching pool" the board has been flashed with success.

After fixing all or some of boards , you can finaly flash back bitmain l3+ original Firmware.

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Manually Flash
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/!\ I will not assist with "how to" here cause i didnt experience it yet
but if you have stuff (pickit3) and knowledge to manually flash chip of your miner here's the files

! warning ! have a look to the pic version you have (writed on the chip).

there is PIC16F1704 or PIC16F1705

Here's the hexa files for each version

MEGA
PIC16F1704.hex
PIC16F1705.hex

1FICHIER
PIC16F1704.hex
PIC16F1705.hex

Thanks to martin_fryc for sharing files, after succefully fix his L3+ by manually flashing PICs

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