We know you have been waiting for a long time until Huawei finally release a stable Android Jelly Bean firmware update for your Huawei Ascend P1 U9200. We have wrote about it here - http://huaweinews.com/2013/07/jellybean-update-ascend-p1/ and interestingly that post is the most popular one on this web site according to the statistics. That alone shows the anticipation towards this upcoming update.
However if you are a adventurer, you can always install a custom ROM on your Ascend P1. But until now its almost impossible to find a stable Android 4.1 and up, custom ROM for this device. Wait no more! Now there is a almost functional and stable Android 4.3 CyanogenMod 10.2 custom ROM for this very own phone.
XDA-Developers use “spanorg” has been building this port from the CyanogenMod 10.2 code so keep in mind that this isn’t a official CyanogenMod ROM.
Here’s the link to the XDA thread- http://forum.xda-developers.com/showthread.php?t=2411958
You can find the installation instructions there to install it on your phone. You will have to be rooted prior installing these custom ROM’s and you can find our Ascend P1 Root Guide here - http://huaweinews.com/2013/07/root-huawei-ascend-p1/
Currently the biggest problem of this ROM is that the Bluetooth doesn’t work correctly. But the developer said a fix for that is coming soon and you can await for the updates on that thread. Other than that this ROM seems to be perfect for the Ascend P1. So give it a go and tell us what you think.