I set a passcode to my archos 5, but how do i deactivate it?

You need to connect it to a computer...back it up data in ITunes and restore your phone (home and power button for 5 seconds, keep holding till it goes black...let go of power while keep holding home for about 10 seconds) ITunes will ask to restore and update. All data will be erased....
Connect to itunes and restore your backup..and use the latest backup. Set a new Passcode.

Hope this helps. If phone is stolen or locked out...this will not work.

Go to settings, general, passcode lock, and then disable it. For that, you'll need your passcode.

First of all, to turn off or change settings for the passcode lock feature on your iPad you must know your passcode. If you have forgotten your iPad passcode you're out of luck.
To turn off passcode lock:
1. Navigate to Settings -> General -> Passcode Lock
2. Enter your passcode.
3. Touch the top button labeled Turn Passcode Off.
4. Enter your passcode again.
The passcode is now deactivated and will not be required to access your iPad.

Is it archos 5 or archos 5 IT ?
For archos 5 IT is already upgrade to 2.2 as far as I know.
For archos 5 I don't think there is one and with archos they don't bother doing anymore upgrades for older models.

Found this for the archos 5 IT.
http://www.youtube.com/watch?v=GzgfCTp6--k

check connection settings if anything is blocking open all the settings

Hi I would think the best place to start is with ARCHOS,
give them the lowdown and see what they come up with.
You could use the Archos forum and look through the help files

Here are a couple of links of were to get a replacement LCD Screen.
It should come apart fairly easy and the lcd ribbon should unplug so then you can place the new one in and plug it in.
I hope this helps to give you an idea of the cost.

http://shop.ebay.com/i.html?_nkw=Archos+5+lcd&_sacat=0&_trksid=p3286.m270.l1313&_odkw=Archos+5+screen&_osacat=0&bkBtn=

http://shop.ebay.com/i.html?_nkw=Archos+5+screen&_sacat=0&_trksid=m270&_odkw=Archos+5+lcd&_osacat=0&bkBtn=

Hi,
Before you hook up to usb go into tools/settings/storage & see if your archos is set for pc hard drive mode which turns the unit into a external hard drive. That should fix it,Make sure you have a copy of the latest firmware downloaded onto your desktop from the Archos website before you try formatting or recovery functions. if that doesn't you might have to do a repair or format. You can try these functions in Customer assistance function in the tools/settings/customer assistance, but I have much better luck doing a hard reset. Sometimes the unit gets a glitch in it & you have to do a hard reset.
Turn on the power when the Archos screen comes on which has the Archos logo on it Immediately hold down the volume + button until the recovery page comes up

The default code is 0000

worked for my 605 wifi

I had exactly the same problem and solved it myself yesterday after months of phoning/emailing Archos "customer support" - with my set up anyway it was my WEP password on my BT wireless router was wrong, I changed it on my pc to the one that was on the bottom of my hub, made sure that the exact same password was entered on my Archos and I could not believe my eyes when it worked. You need to make sure of course that all the other settings match too, IP address, Gateway and all that other stuff I dont really understand, (nor want to !) Good luck Ulstergirl