Can you check with the main board factory about the repairs and see if they finished ?
Are there any compatible main board we can use to replace this LM1BB coz obviously the is something wrong with the production of this main board, we have till now more than 80 defected pcs of those and the repairing process is not going well because many of the returned main boards did not work, not to mention the lack of support for these from the factory.
Dear I need a final solution for this matter please cannot continue like this without having any spare parts, already my superiors started questioning "what wrong why is this happening? what if this happens again in future orders?"