Lenovo A516 Manual de serviço - Página 26

Procurar online ou descarregar pdf Manual de serviço para Telemóvel Lenovo A516. Lenovo A516 40 páginas.
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Lenovo A516 Manual de serviço
Repair Manual of Lenovo A516 Mobile Phone

4.1 Software Download Failure

Faults: Software can't be normally downloaded.
Reason: Baseband chip is oppositely pasted or is in cold solder joint; CRYSTAL is
oppositely pasted (no clock signal) or is in cold solder joint.
Shooting:
Software can't be normally downloaded or the
phone can't Power-onbe turned on.
Whether baseband chip MT6572
(U1101) is oppositely pasted
Check whether U1101 is
in cold solder joint
Check
(U2104)is oppositely pasted?
Separately check whether U2104 is in cold solder joint?
Re-weld the elements in cold solder joint
Re-download software when it is normal after replacing elements,.
N
Y
N
whether
TCXO
N
26
Y
Re-weld U1101
Re-weld U1101
Y
Re-weld U2104