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Rewrite SN, IMEI, BT & WIFI APK SOP
HOW TO SET UP THE SN OF YOUR DEVICE
1. Preparations
Install CSD SN app which will help you set SN (Serial Number). Click the icon to launch this app and you will see two
buttons.
2. Write HQSN
Step1 set a new HQSN
Click “HQSN” button to set the SN of the chip and you would see there is an edit text which you enter you validated
SN (serial number). When SN is done you can click the set button to write SN into the chip. When succeed, you will
see the information that write hqsn into ap nvram success.
Note: only numbers and uppercase letters allowed and no more than 25.
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