For guys those who cant able to update to newer version of Bada please do a Manual Flashing and its too easy, here's the link (
News - www.SamFirmware.com) and Please do follow the steps,
Samsung S8500 Flashguide.
How to flash the Samsung S8500 Wave.
Note: When you don't have Boot and Factory files use only your region firmwares!
Tutorial:
1 - Phone, USB Cable, Firmware and Multiloader.
2 - Take out the Firmware and Install Multiloader.
3 - Open Multiloader. Select LSI6410 and check Full Download.
4 - Load Multiloader.
5 - Select Boot and go to the file. (When you don't have Boot files leave this blanc.)
6 - Select Amss and go to the file. (When you don't have Amss files leave this blanc.)
7 - Select Rsrc1 and go to the file.
8 - Select Rsrc2 and go to the file. (Select Always LOW)
9 - Select Factory FS and go to the file. (When you don't have Factory files leave this blanc.)
10 - Select CSC and go to the file.
11 - Select SHP APP and go to the file.
12 - Select FOTA and go to the file. (When you don't have FOTA files leave this blanc.)
13 - Select PFS and go to the file.
14 - Get now your phone and cable. (Leave out Simcard and MicroSD)
15 - Now put battery back in and hold: Volume Down - Camera - Power.
16 - Now your phone will say DOWNLOAD.
17 - Take now your USB cable and plug him in your PC and Mobile.
18 - Wait a couple of minutes. (PC need to fix the drivers)
19 - Now Multiloader will find your Phone click on port search for the safety.
20 - Now click on download. (DO NOTHING YOURE PHONE WILL BOOT AFTER FLASH!)
Finally its done will take around 5 minutes to the MAX :clap:
--- Updated Post - Automerged ---
And while flashing please do use all the files (Totally Seven Flashing Files will be provided which changes according to the region) with the MultiLoader to do a clean Flash