Backup your NVRAM partitions, and never loss IMEI, MAC address, bluetooth, etc

ZOPO Post time 2017-8-31 15:28:51 From the mobile phone | Show all posts [Copy link]
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Nvram partition:

Nvram partition to store the data part of the machine Settings, including your imei number, wifi bluetooth MAC physical address, and the serial number of sn, the regional data can not easily change, regular flash package will not move to this area, and the line has no connection on your credit card.

Mobile phone/data/nvram folder data read from nvram partitions, these files with user data, and a key information is the version number. With general backup restore series number only fix the nvram folder in the operating system, and can't write it into nvram partitions, if brush opportunity has the potential to lose again.


Backup your phone NVRAM

Next to guide how to backup nvram partition, no longer worried about losing their phones IMEI, bluetooth address, MAC address, etc.


Step 1:
install driver
(With administrator privileges to run DriverInstall. exe, the default choice next. Until the installation is complete)
http://www.zopomobile.com/forum/thread-350-1-1.html
How to Install USB VCOM Drivers in Windows 8 and up
http://www.zopomobile.com/forum/thread-359-1-1.html


Step 2:
Please to zopo's official website(www.zopomobile.com/?p=1) to download your phone models of ROM. Then unzip and open MTXXX_Android_scatter. txt
search the NVRAM
  1. - partition_index: SYS3
  2.   partition_name: nvram
  3.   file_name: NONE
  4.   is_download: false
  5.   type: NORMAL_ROM
  6.   linear_start_addr: 0x380000
  7.   physical_start_addr: 0x380000
  8.   partition_size: 0x500000
  9.   region: EMMC_USER
  10.   storage: HW_STORAGE_EMMC
  11.   boundary_check: true
  12.   is_reserved: false
  13.   operation_type: BINREGION
  14.   reserve: 0x00
Copy the Code
Look at the two addresses
  1. physical_start_addr: 0x380000
  2.   partition_size: 0x500000
Copy the Code
Note: Different mobile phone the two address may be different, only do a demonstration here.

Step 3:
Open the sp flash tools
(Sp flash tools links: http://www.zopomobile.com/forum/thread-352-1-1.html)


Click "Readback" (backup function) -- -- -- -- -- - click on the "Add" appear as shown in the figure below:
QQ截图20151010161753.jpg
Double-click on it
QQ截图20151010182737.jpg
Choose save the file directory, the file named nvram. img
And then click save.
1.jpg .
31.jpg
The Fill in the "Start Address" and the "Length" click OK, and then click the "Read Back", at that time, turn off your phone, through the data wire to mobile phones and computers, waiting to be Read is complete, you will find that has already get a NVRAM. img file.



Use your backup NVRAM. img

When you find your phone accidentally lost IMEI, MAC address, bluetooth, etc, at that time, you need to use NVRAM. img this file. So how do you use?
Step 1:
Open the MTXXX_Android_scatter.txt file, search the NVRAM
  1. - partition_index: SYS3
  2.   partition_name: nvram
  3.   file_name: NONE
  4.   is_download: false
  5.   type: NORMAL_ROM
  6.   linear_start_addr: 0x380000
  7.   physical_start_addr: 0x380000
  8.   partition_size: 0x500000
  9.   region: EMMC_USER
  10.   storage: HW_STORAGE_EMMC
  11.   boundary_check: true
  12.   is_reserved: false
  13.   operation_type: BINREGION
  14.   reserve: 0x00
Copy the Code
Is modified to the following
  1. - partition_index: SYS3
  2.   partition_name: nvram
  3.   file_name: nvram.img
  4.   is_download: true
  5.   type: NORMAL_ROM
  6.   linear_start_addr: 0x380000
  7.   physical_start_addr: 0x380000
  8.   partition_size: 0x500000
  9.   region: EMMC_USER
  10.   storage: HW_STORAGE_EMMC
  11.   boundary_check: true
  12.   is_reserved: false
  13.   operation_type: BINREGION
  14.   reserve: 0x00
Copy the Code
Through the flash tool to download
01510.jpg
Download after restart the mobile phone, you will find the missing IMEI, MAC address, bluetooth, etc have already come back.











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NovakC Post time 2017-1-4 20:42:54 | Show all posts
Hi, I haven't read this post before flashing my Color C3 with a original ROM and now I've got invalid IMEIs and doesn't have a NVRAM backup. How can I restore the original IMEIs??
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tennirva Post time 2017-8-31 15:28:51 From the mobile phone | Show all posts
Thank you for this thread. I have also encountered the same problem as NovakC. May I have the address for entering IMEI 1 and IMEI 2 using editing the NVRAM.BIN file via a Hex editor ? For example, 0x8000 should be for IMEI 1?  And another address for IMEI 2.
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