[Xperia Arc General] Omessy7:
Greetings everyone,

Well, i have seen many many such problems "ROM didnt work" "mod not working even though did all steps" etc..and personally XUHD 3.0.2 at the time was not working at all on my device and i was so sad and frustrated, but then i realized the problem, flashed arc S FW and everything worked ever since...

The thing is those people are manly using an Xperia Arc (LT15i) with the Arc firmware, and that the problem... with modern ROMs and mods, you need a bigger internal memory and bigger system partition space, which the Arc S (LT18i) has... Flashing stock LT18i FW on your Arc is very easy,simple,and recommended and i will guide you through (by now every single Arc FW user should follow to change to Arc S FW for a more comfortable and suitable Xperience...

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INSTRUCTIONS:

*First of all download and install Flashtool ( a VERY handy tool to Unbrick,flash kernels,flash FW and many more options !) it is found in Arc Development section as a sticky so you can easily find it. install in C:/Flashtool (special thanks for Bin4ry and Androxyde for the Xtremely helpful tool) then go to C:/Flashtool/drivers and install the drivers you need for your device (dont forget flashmode/fastboot drivers)

*Assuming you installed/have it now you need to download the Arc S stock ics FW ( uploaded by zohaib0001) here: http://d-h.st/cyw

*After its downloaded it will be a .ftf file so you only need to copy it from downloads folder to C:/Flashtool/Firmwares in folder firmwares you can put the files needed to flash (e.g kernel,firmware...).

*Backup all those things you need because when you flash this firmware all your data is lost but NOT pics,vids,music.... you can use ANY backup tool to backup your apps,app data and more, like Titanium backup which is good...and for calender stuff and contacts simply sync them with Google so they would be VERY safe wherever you go....

*turn off your phone and wait for 3 seconds

*open flashtool and press on bolt icon and pick flashmode, you will see the FW on the left..double click it and wait for it to be prepared...

*after it's prepared it will open a window to tell you what to do ( now what you will do is hold BACK key while plugging in the USB cable.

* now your Arc will light up green and on flashtool it will start flashing the FW... (in case it gives an error with "flashing aborted" redo from 2 steps behind (own experience), if redoing those steps didnt work it means drivers arent properly configured so you need to make sure you installed drivers are installed from drivers folder in flashtool folder...

*After its 100% done, close the flashtool and unplug your Arc and turn it on... you will notice that there is no root ( BOOTLOADER NOOOT AFFECTED) so if you have unlocked bootloader simply do what you do to flash a new ROM... flash a kernel via fastboot (flashtool kicks in handy so you can flash kernels easily) like LuPus for example and reboot or flash ROM if you have it on SD...and sync with google to get back your stuff and install apps to resore your other stuff.

* Do these and you shall not face any problem with any ROM and mod (unless one of them is faulty :p ) and enjoy a better Xperience with a higher internal memory and higher system partition !