Samsung Galaxy Gio S5660 Android 2.3.5 Gingerbread Firmware

A new firmware for Samsung Galaxy Gio S5660 with build number S5660XXKS5 this ROM is packed in Android 2.3.5 Gingerbread with a build date of October 15, 2011. The CSC file is SER - S5660SERKS1, which is the default firmware code for Russia. But anyway a global version of Galaxy Gio may also use this ROM, the only tweak is to change the default language which is in Russian to any European region.

This ROM might be a developers beta release since it doesn't yet shows up from Samsung Kies official firmware update server. This is the second ROM released for Gio since from the first Android 2.3.5 with build number S5660XXKS2 that was recently released last September. The baseband version still the same from previous 5660XXKS2, so the build number is the only got a change. We also have many reports that the first release was facing a lot of bug issues so hope this one might be the stabler one.
A brief report from previous XXKS2:
I've upgraded my Samsung Galaxy Gio from froyo to Android 2.3.5 Gingerbread S5660XXKS2 recently. But i'm facing serious crashes & reboots while turning my wifi on. Please help me as i can't access internet on my phone anymore. Please guide me if there is a solution or a newer version is going to be launched after fixing the issue?

Here's the binary files - Firmware details:
Build number: S5660XXKS5
Product: Samsung Galaxy Gio GT- S5660
PDA: S5660XXKS5
Phone:S5660XXKS2
CSC: S5660SERKS1
Version: Android 2.3.5 Gingerbread
Build Date: October 15, 2011

For advance users of Galaxy Gio, the stock ROM is now available online and can be manually flash using Odin tool.

From SamMobile download area.
S5660XXKS5_S5660SERKS1_SER.zip
Pass: samfirmware.com

From Przekret at XDA
S5660XXKS5_S5660SERKS1_S5660XXKS2_HOME.zip
pass: sampro.pl

OPS File: GIO_v1.0.ops Download
Password: samfirmware.com