Fail to upgrade Samsung Gear S2

Here is the problem when I try to upgrade gear s2 to the latest version:

  • hardware: Gear S2 Classic, SM-R732
  • software: R732XXU2CPC5
  • error: upgrade fails at 17% every time, then s2 will reboot automatically

Solution:

  1. use NetOdin to flash S2 to a old version (R732XXU2BOKK)
  2. use Gear Manager to upgrade S2, OTA

Now the new version is R732XXU2DPFB. It might also be possible to upgrade to this version directly. But I did not find this firmware for netOdin.

Here are steps to upgrade S2 using NetOdin:

操作方法:“短按电源键-->滚动选择菜单”,“长按电源键-->进入选中的选项”。。。          
Controls: 
1. short press power button: navigation; 
2. long press power button: select

注意事项:操作速度一定要快,因为闲置3秒自动重启开机。。。
Note: after 3 seconds idle, system will reboot, so please be quick
熟悉了操作方法,下面就开始动手操作了。

1. 手表充满电,关机.
power off

2. 长按开机键7秒钟,等到出现“Rebooting...”字样时,快速连续按三下开机键,进入一个启动模式选择菜单。
long press power button for 7 seconds, S2 will start with "Rebooting...", quick press power button for 3 times, enter recovery mode

3. 在这个“Select REBOOT MODE”菜单下,不要多要多停留,直接连续短按电源键向下选择到第三项“Download(wireless)”。
short press power button to navigate to "Download(Wireless)"

4. 停留在“Download(wireless)”项目上,再长按电源键进入无线刷机模式。
stop on "Download(Wireless)", then long press power button to enter wireless odin mode

5. 此时手表默认显示为(WPS连接模式),我们需要短按两下返回键,切换为(AP连接模式)。
short press back button twice, wireless mode will be switch to AP mode
至此手表端的操作就完成了!完成了!完成了!完成了刷机过程的一部分。。。 
then all operation on S2 side have been finished. the rest part will be done on PC

6. use your laptop to connect to S2's AP

7. use netOdin to flash S2 (AP, BL, CSC)
PS:可能会有人用电脑的网络管理器搜索连接手表的WIFI信号后,手表无限出红字,提示连接超时。 
这时候只需要在电脑端运行WIFI刷机工具“NetOdin3”,手表自然就出于等待接收的正常状态了。

 

Links:

netOdin3:

https://1drv.ms/u/s!Al8vqu22jWkyinLXd7kqBOZmofjL

Tutorials to use netOdin3: (in Chinese)

http://bbs.52samsung.com/forum.php?mod=viewthread&tid=739679&extra=page%3D1

http://bbs.52samsung.com/thread-737567-1-1.html

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