How to remove write protection from memory card

SOURCE: how to remove write protection from 1gb memory card?

Have you formated it yet?

SOURCE: Write protection in N70 nokia mobile MMC card

there are many things you can do to remove write protection but you have to give rating to me. Here is the first one 1.)go to MY COMPUTER 2.)right click on MMC drive 3.)click on eject. 4.)remove MMC form card reader 5.)again put it back (if at once it didn't worked try again step{2,3,4}
second method is: sometimes your USB port locks it try some other USB port & then put the MMC in memory card. pls rate me thank you

SOURCE: to remove write protection of my memory card for nokia 6630

we have dissame phone model... and i think i can help you ... get the memory card and a card reader and connect it to a computer then format .....in the computer you can format it

SOURCE: how i remove write protection in my mini sd memory card

Just go in these page there are a solution...

http://www.instructables.com/id/S27LXZRF7DWO18T/

SOURCE: how to remove write protection on a memory card

Removing the write protection depends on the source of the problem.
Broadly speaking, it can be any of the following scenarios

1. There is a write-protection tab on the mini sd card HOLDER. Every time you insert this into your PC or card holder, this tab slides to the write protect position. Either keep resetting, inserting & reinserting until it doesn't slide or tape it down.
2. There is nothing wrong with the mini sd card. Simply locate the write protection key and push it.
3. The mini sd card has some error: Go for a low level formatting.
4. The card has virus: Remove the virus. The link for the steps is present in the related link at the bottom of the article.
   

There is an easy way to solve this problem: Simply put the yellow lock in the middle of its slider. No sticky tape required, as shown below. But if your still having the same problem i suggest you try the sticky tape.

problem is only that small moveable yellow lock switch is not making, just put sellotape over it maybe two layers needed to make switch.
== Answer == Even though what is written below may work, the problem is probably that on the card reader (if you have one) there is a small switch that has lock written on the side. If this is pushed down, the drive is write protected, push it in the opposite direction and it may fix your problem I had the same problem with several cards but eventually found a way around it. DON'T buy a new one!

Make sure the SD card lock is 'off' and then use thin, opaque sticky tape (ie non see-through; eg insulation tape) to cover the whole gap but keep clear of the metal contacts at the back.

Your card should work fine now... don't know why this has to be done, but it works! Additional info:
Reason #1,
the mechanical lock switch accidentally moves to the "locked" position during insertion due to the poor quality of the switch. Hence, by taping it, you are actually preventing the lock switch to travel towards the lock position. i.e. downwards.