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It is always recommended to do bios upgrade under the guidance of an expert.
Most probably, computer motherboard is affected due to this bios upgrade as it is not responding even after taking RAM memory.
In this case, you can contact Acer Support team and local hardware expert and find the cost of repairing/replacing the faulty parts and then take your decisions whether you need to repair it or purchase a new computer.
Acer support USA: Click Me
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