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Sometimes this happens due to voltage fluctuations on the motherboard. Due to the voltage fluctuations, the powerboard will become corrupted in the process. In rare cases the SOM can also be corrupted. You will have to replace the powerboard and the motherboard. The guide can be found here: /wiki/spaces/EKC/pages/3614408705 and /wiki/spaces/EKC/pages/3635019901.
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