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section needs
whether you
a change IMEI, then use
skipped. Please refer to the following specific steps guiding tool to
write numbers。
Write custom-tailor information ： Write lock network, national, and run the
business information. This
machine's original
without lock nets and other customized information, this step can be
skipped.
following guidelines to write customized information.
RF calibration measurement: RF calibration and RF functional test, pass RF calibration
can make mobile RF performance to reach the best state; RF functional
test can detect whether the indicators of RF compliance. Specific test
methods can refer to measurement guidance and supply by other
document.
Mainrboard repair process description: mainboard repair process, please refer to the
1.1 FLASHTOOL loading guidance（half-erasure FLASH or whole
erasure FLASH）
1. Open FLASHTOOL
2013-10-18
YU220 service manualV1.0
please refer
need
to
information operations, if the
Specific
methods
host repair processes, the difference is that recognize it not need
to make the host MT test after fault repairing.
Huawei secrets, no dispersion without permission
to your
local service
rewrite the
original IMEI, if
the
original
section needs
of
operation
policy to
not
IMEI, this
step can
please refer
original version
please refer
decide
ask
for
be
to the
to
the
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