[Q] Use more RAM with Android 2.1

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The Android version on my X10 is 2.1.update-1 and I can't update because the sim-unlock I did would relock and i couldn't use the phone anymore. So my question is:
How can I use more RAM, because the X10 should have about 384mb RAM and according to different task managers there are only 280mb available and just about 100mb free (so about 180 are used)?

Originally Posted by Raex

The Android version on my X10 is 2.1.update-1 and I can't update because the sim-unlock I did would relock and i couldn't use the phone anymore.

You can safely update to the version 2.3.3, a telephone will normally work. You can even do bootloader unlock. Only a reverse operation (relocking bootloader) will demand sim-unlock.

Well, the guy in the phone shop told me it would relock after an update, also the support service of sony ericcson told me not to update because the simlock would appear again and i should take the phone to the shop again and let them do the update, but they said that they cant do the update for me either, so i doubt that its that save for me to update to 2.3.3

Originally Posted by Raex

Well, the guy in the phone shop told me it would relock after an update, also the support service of sony ericcson told me not to update because the simlock would appear again and i should take the phone to the shop again and let them do the update, but they said that they cant do the update for me either, so i doubt that its that save for me to update to 2.3.3

If you trust "guy in the phone shop" then is a sense to ask a question here??

Well good point, but if not him, then the service and support center of sony ericcson, they told me exactly the same thing, and i think they should know best how their own devices behave or react after an update (and these things).
So is there another way to use more ram, except of updating?

The thing with most support centers is they chat alot of useless info as they can't be bothered half the time, i had a sim unlocked x10i i did the update to 2.3.3 and was not asked to unlock the sim again, if the shop did a code unlock they should have given you the code if not i'd suggest you find your receipt and get the code again, i don't know what kind of phone shop you use but a software update shouldn't induce a sim unlock needed again to use the handset i've updated many phones and never had the problem

OK, but i dont think they did it with a code, as i remember they told me they had to do it with some kind of software, because it wouldnt work with a newer android version than 2.1, thats also the reason why i shouldnt update the phone...