There should be a problem in the process of brushing, or there may be a problem with the bag itself, which caused you to get stuck on the road during brushing. Generally, when the brush is half still, you can only brush it again.

Some functions customized by Unicom are really not very easy to use, so many people especially want to "slim down" their love machines, and there are many problems in brushing them. This is normal, don't worry. Let me share my experience with you to avoid making mistakes again.

(1) Download Huawei U8800 firmware (China Unicom)

{Address: htt

p://ww

Huawei

device.com/cn/prod

uctFeature

s.do？ pinfoId=269

4 & ampdirectoryId=500

5 & amptreeId=3

677 & amptab=0}

(2) Turn off the mobile phone, take out the sd card, press the firmware to the SD card through the card reader, and copy the folder (dload).

(3) Replace the SD card and battery, and tighten the battery cover.

(4) Then press the volume up and down key+power on key at the same time, and the mobile phone will automatically enter the upgrade state.

(5) The upgrade is divided into two steps. The progress bar is completed. After the upgrade is successful, unplug the battery for 3 seconds, then turn it on, wait for the system to start (wait patiently for a long time), and enter the standby interface to complete the upgrade.

Good luck ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~