install rom
Turn off the machine and then on the “S / W Upgrading” (each machine will have different ways to, can consult online)
– For T100K line, A760S, A770K, A800S, A810 and A820:
3 simultaneous publication volume keys (+), and search resources (keys scratched). 1 when the machine will keep on mode S / W Upgrading
– For the line A830, A840S and A850:
3 simultaneous publication volume keys (+) (-) and source. Use the volume keys (+) and (-) to move to the “PDL Download” and then press the power button to select. The machine will switch to S / W Upgrading
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