Can't update GTA V

Hey Guys...
I recently tried to manually update GTA V by putting the latest title update(1.28)on my content folder
I am pretty sure that i did it correctly.

After i started the game it showed up normal rockstar logo and then a window came that said "You are not signed in your progress and achievements will not be saved do you want to continue".

When i selected yes the log in window showed up as i was already logged in but i logged i again but nothing happened.so i selected no and the game started from the beginning.
I deleted the update and every was back to normal.

I also installed a older title update(1.14) and it worked just well still i haven't got any cars included in that update or any other older updates

So what should i do to install the latest title update and get all the cars..
Please tell me a offline procedure cuz i don't have xbox live ^_^

 

Thanks For replying late night I have always downloaded an unextracted version and i have no problem in moving the update to 360. I also tried by using horizon and also directly putting it in my hdd by xexmenu i think moving is not my problem the real problem is i can't run gta v with the latest update installed.....

I will be very glad if you can post a link for a working latest title update and again thanks for replying......


I also tried putting a trainer which was updated to latest title update(1.28).It Was in the same form as the TU file but still the same problem...although the trainer is working fine.

 

It Worked but which title update is there are no new features i still have that old cars in the ingame websites no new cars as written in update notes
It is just change of extension to .part or it is something else that made it work....
The Problem is still on.....

 

Thanks for helping....And sorry for replying so late
I downloaded a console trainer for gta V which was in a TU form but the same problem occurred but i just started the game from beginning without saving to check if the trainer is working and it was working fine then after downloading the file that you send I edited the extension of the trainer by just putting .part(same as the file)in it I checked it on my X360 the trainer was showing on the storage device as TU then i started gta v and no error came up I got very excited.
After the game loaded I pressed the trigger buttons to activate the trainer but the trainer didnt load I tried it many times but no luck
If you can solve This then please help.....

 

I am Very Very Sorry for Replying Soooo Late
I tried it it and it worked not perfectly because the in game websites didnt update but still it does the trick....
Thanks Man...You'er great :thank_you: