Antminer L7 dev init failed - L7 Kernel Log

I don’t know if L7 miner users have encountered the problem of software errors in the backstage log during the miner's operation. How do you solve this problem? Recently we received a faulty kernel log from a miner friend, and the screenshot is as follows:

L7 dev init failed

According to the above log content, the obtained software version is wrong, and the command dev init failed to be repeated. This shows that the PIC of the hash board is not running, which leads to the failure of the miner to start. So how to solve it?

Solution:

1. Check whether the hash board data cable is loose or damaged.

2. Use a programmer to rewrite the PIC program.

3. Check the output of the PIC chip (the normal voltage is around 3.3V), and replace the PIC chip if the voltage is abnormal.

Further reading:

>> Antminer hash board PIC file burning tutorial

>> Hash baord data line 9*2 19CM

0
About products purchase, please contact our sales manager:
[email protected]

About miner repair and after-sale issues, please contact the repair manager email:
[email protected]

For business cooperation, please contact:
[email protected]

COMPLAINTS & SUGGESTIONS
If you have any dissatisfaction during the transaction or have valuable suggestions for us, please contact us via this email address:
[email protected]
Attention!

Recently, many companies claiming to be mining companies imitate us and say that they are related to us, or that they are our branch companies, which has caused customers to be deceived. Please be careful not to believe any impostors, please check our correct contact information and beware of being deceived getting scammed, and losing money.
please check our right contact way: Here

CLOSE