Hi, I am using ShenDu Custom DEV ROM on my Huawei U8860 (4.1.2-130329-DEV) and it doesn't come with Sim Toolkit.
I created a custom Zip that contains Stk.apk from another ROM, and flashed it. It flashes with no error, sets permission right but SimTookit app does not run. It is not in my list of apps or even running apps. find my signed ZIP attached.
Where could I have messed? P.S. I'm a noob
You need to prepare a flashable zip with Stk.apk from similar ROM to yours, eg A ICS/Jellybean STK if you ROM is based on the same . Then extract the manifest (CERT.RSA, CERT.SF, MANIFEST.MF) from the META-INF of your current ROM (ROM your phone is running on) and replace the same files in your flashable zip. You can then flash the zip from CWMR. No need to sign the apk or zip. The rule here is that for Stk.apk to work, it has to have the same manifest as your phone.apk. No idea what happens if you replace phone.apk alongside Stk.apk instead in a zip.
Attached is my zip, you can use the update script, but remember to change the Stk.apk and especially the Manifest file.