downgraded from 2.00 to 1.5 but now it is 1.00

Hi i av just downgraded my psp from 2.00 to 1.5 when i goto system and version it is 1.00 any ideas how i get it upgraded now dunno how this happened

omg this is suppose to happen, after looking at the tiff, take out the battery of the psp, and restart, the ver is 1.00 so then u can launch the 1.5 update; thats what the photo is for. ITS NORMAL

lol yeah run the 1.5 eboot update and then your downgrader to 1.5

ok guys done exactly like u sed but as soon as i go into the memory stick then hit x it plays a psp sound then goes to a yellowish screen with the psp logo then reboots when it comes back on it says this game cannot be started av i goosed it

ok get 1.5 update from psp-hacks.com the make a folder on your psp. so PSP/GAME/UPDATE/and put 1.5 update in UPDATE folder then run

READ THE f**k README!

please edit your usuage of words thanks make sure you read over the forum rules again.

it may come as a bit of a surprise to u but everyone started at the bottom and if i wanted abusing then i would av asked i aint got a clue bout psp only just started learning and i am asuming this site is here to help lamers like me so button it

true but... READ THE README, ive downgrade for the first time just a couple days ago and everything went fine just following the readme.

ok i understand everything in the readme and i totally agree with wot u say but as i sed b4 up to the point where i go to the game/memory stick then it shows the 1.50 update everything is fine as soon as i press to update the yellowish psp screen comes on then goes off then it come to a screen that says the game could not be started then i cant do anything else

You should redownload the update, maybe there is something wrong with yours, and you have the eboot in the UPDATE folder correct?
----edit----
Nab the US 1.5 update below:
http://dl.qj.net/PSP-Firmware-1.50-File-(EBOOT)-North-America-PSP/pg/12/fid/163/catid/163
and once you get to 1.5 make sure you grab that custom firmware, since it ROCKS! Oh, get the harlyg mod, since it's almost like using a dualboot firmware if you have Devhook. You'll know what to do and where to get it once your a member of the 1.5 family and if you need help go ahead and IM me on aim at: P5PU532, glad to be of any help.