1. G3 Acer CSD Nvram Writer SOP v0.1
CN_SDD
Release Date: 1

2. Revision History Date Version Description Author 2013/12/11 v0.1
Initial version
Henry_Huo
Version 2

3. Agenda Preparation Use Nvram Writer Prepare related environment
Install MTK USB driver
Install NvramWriter.apk to PAD
Use Nvram Writer
Start Nvram Writer
Read & Write Nvram
Error reminding
Version 3

4. Preparation
Version 4

5. Prepare related environment
Prepare below devices
PC that have installed adb driver
Micro USB cable
PAD with service Rom (root permission) OS
Needed APK
NvramWriter.apk
Version 5

6. Select MTK driver folder Execute “Install.bat”
Install MTK USB driver
Need to change pic in Eng
Select MTK driver folder
Execute “Install.bat”
Select to continue to install the driver when there is a warning dialog popup 6

7. Insure there is a completed information in command line:
Install MTK USB driver
Insure there is a completed information in command line: 7

8. Install NvramWriter.apk to PAD
Enable USB debug mode on PAD
Connect PAD with PC by USB cable
Linux OS：Please execute below command in terminal
adb install –r APK_PATH
There is an app called “NvRamWriter” in PAD app
list after installation completed
Noted: apk path in command should according to the real one 8

9. Install NvramWriter.apk to PAD
Windows OS: add current path as system environment variable. (Noted: if have setup adb path, no need to
do this action again)
Execute “Install NvramWriter.bat”
Mare sure install successfully by below information
There is an app called “NvRamWriter” in PAD app
list after installation completed
Version 9

10. Use Nvram Writer
Version 10

11. Start Nvram Writer Click “NvRamWriter” icon 5 major item
CodeSN
UUID
WifiCode
WifiMacAddress
BluetoothMacAddress
5 functions for each item
title
value in PAD
rewrite edit view
confirm edit view
submit button
Version 11

12. Read & Write Nvram Read Write
Value in pad display the current value read from PAD
Write
Click edit view, it will popup soft keyboard for user to input
Click “Submit” button to write the value to NvRAM after input completed
If the format is correct, current value in PAD will be updated by new one

13. Error Reminding(1/4)
Some reference popup messages are available if there are incorrect actions
If press Submit button without any input, message will show as “Please input XXX”

14. Error Reminding(2/4)
If without value in Confirm view, message will show as “Please input confirm XXX”

15. Error Reminding(3/4)
If the value in Confrim view is different with that in ReWrite view, it will show a meesage “Confirm XXX is not match” when press Submit button

16. Error Reminding(4/4)
If the value length is incorrect and press Submit button, message will show “Length of XXX should be XX”

17. WiFi Code
Canada, US, Taiwan Use “5553”
Other countries Use “4555”

18. Thank You!
Version 18