Hello everyone I'm just a noob that got his attention on this great and very handful forum and wants to learn a lot of things that might help me with my motorola Zn5.
1.- Ever since I got my Zn5 I noticed that it was quite slow, I kinda associated it with the firmware that it has, since it got a bunch of the operators applications on it. my question is: If this is correct, could I change the firmware and get a better preformance?, How do I do this?, does the firmware has to be the same as the one that I have now?.
My Zn5 Firmware: R6637_G_81.03.0DR
My Bootloader : 06.2A
2.- Well Im new in this kind of stuff, so I wanna know what exactly is a noRSA bootloader and Firmware, what does it means?, would it be good for me to use it?.
3.- I'm kinda getting embarrased of making so much questions, makes me feel ........ like a newbie I guess, but then again, thats what I am at the moment. Well, I was wondering; If I could flash my cellphone with a firmware and get to use my cellphone with any other operator's SIM. if this is true, how can it be done?.
Thanks everyone, any answer its appreciated, and have a nice day.
I suggest you take a look at the guides and use the search feature a little bit. However, I'll give you a general idea below:
1) Yes, you can flash any firmware you like that is compatible with the 06.2A boot-loader. Some are a little bit faster but the impression I got is that none of them are particularly impressive at performance.
2) To understand what a noRSA bootloader is, you first need to understand what RSA protection is. When Motorola designs the firmware, it puts a small encrypted signature or key at the end of some CGs (codegroups). This is done so that no one can modify that CG. If it does get modified, the default stock boot-loader will detect the change as the encrypted keys will not match anymore, and the phone will fail to power on beyond the boot-loader. [If this happens, flashing back an unmodified firmware fixes the phone again]. Now, noRSA boot-loaders are done to bypass this security check, thus allowing us modders to modify content in these restricted areas of the phone's firmware without any trouble. For more information on RSA on its own, take a read here .
3) What you are referring to now is unlocking. Unlocking is independant of the firmware. Any ZN5 can be unlocked on whatever firmware it's running. That means that you can use (for example) a Vodafone SIM card on a T-Mobile firmware as well without any problems. However, the only way this can be done at the moment is to buy an unlock code. There are sever websites on the Internet or sellers on eBay that have access to Motorola's unlock code database. The ZN5 uses a 16-digit subsidy unlock code. No software hacks are available yet for unlocking the ZN5 (or any other Linux Motorola for all that matters).
Note: Before flashing your phone, take a note of your original firmware just in case you need to go back to your original firmware. That would be important in case of warranty issues as flashing voids your warranty. Therefore, all you have to do is put back your original firmware and they wouldn't notice. Also, make sure you have a fully charged battery before flashing .