[Q] firmware update no usb connectivity

[bkwas]

Hi,
After searching other topics similar to this I find the need to post. Please help
Just purchased a gs2 sgh-i777. Had gingerbread 2.3.4? Downloaded kies and updated to jellybean. Immediately after update reboot the battery was at critical and no usb connectivity what so ever. So dead phone no way of charging. I am returning the phone for exchange. I want the newest firmware so my question is this. How to I update prevent this from happening again. Root, backup then update firmware?

 

[creepyncrawly]

The Kies update would not normally cause that problem. It may have been a problem with the hardware, such as a bad usb port.

But, what ever the reason, if you are comfortable customizing your phone then flashing the firmware yourself would be the better choice. And, the custom firmware available in the development section performs better than stock also. There is plenty of information available on how to do things. If you are new to this, just be sure you understand what you are doing before acting, so as to avoid problems.

 

[bkwas]

Thanks for advise,
I am new to smartphone mods but have pc knowledge.
As soon as new phone comes in I will flash a rom. I will be very careful but want to make sure I can reverse (have recovery) should things go wrong.

 

[creepyncrawly]

Read through the sticky posts in General, Q&A and Development forums. You can also use the links in my signature. If you have any questions along the way, feel free to ask.