If you are a user of Galaxy Ace and want to install Android 2.3.6 you are on a right place below you can see step-by-step guide for this purpose. Before you get started make sure that you have manage back-upbecause below steps can damage your valued data also make sure that you have model number S5830, because below steps are just compatible with this model.
For this purpose you also need to install the drivers you can download the drivers from this link
DISCLAIMER: Please proceed the below guide at your own risk, Android Egis will not be held responsible if your device lost data or get damaged following this guide.
Click on OPS to browse and select the OPS file and after that need to go the main folder where you have extracted Cooper v1.0 ops file.
Put a check mark on One Package and browse click on the last box that is ONE PACKAGE and select the firmware file.
You will get the following message once firmware file is checked:
Check MD5 FileName…
MD5 File Name : S5830DXKT5_S5830OLBKT3_S5830DXKT4_HOME.tar
Open File Name : S5830DXKT5_S5830OLBKT3_S5830DXKT4_HOME.tar
Check MD5 …
Tail MD5 : 4B2A82ACFB4598E491200D08DFB5A377
Image MD5 : 4B2A82ACFB4598E491200D08DFB5A377
Check MD5 … ok
Now enter in Download mode to press Volume down + Home + Power keys at the same time.
While in the Download Mode, USB Cable to connect your device to PC and wait for ODIN to detect the phone.
Now the COM PORT 1 MAPPING box will turn into yellow and the device’s port will be detected. In the message section, you will get the following message:
Now click on START and it will take around 5-6 minutes and will reboot your Galaxy Ace twice or thrice.
When DONE, you’ll get a message as PASS in the COM PORT box as well as message section now disconnect the device.
Reboot it and select your language and go to Settings > About Phone and check the Firmware Version.
Restore the phone back to factory settings to wipe off the data as well as cache. To do it Go to Settings > Privacy settings > Factory Data reset or type this code: *2767*3855#
When it restarts, shut it down once more and insert SD card and SIM card and now your device (Samsung Galaxy Ace) is just like a brand new handset with Android Gingerbread 2.3.6.