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Laptop repair Lenovo 70-70.
The laptop did not turn on, and gave the error “EFI Network 0 for IPv4 boot failed”.
In the diagnosis, the following problems were identified: the hard disk HDD was out of operation, there were traces of liquid in the laptop, and prevention of the cooling system is necessary.
The hard drive has been replaced with a new Kingston 240 Gb SSD.
The laptop was cleaned of traces of liquid and cleaned the cooling system.
Windows was installed, and the laptop is ready to work again.
After repair, the laptop began to work several times faster, quieter and longer without recharging.
The time it took to diagnose and repair: 6 hours.

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