Xperia J - how to increase the size of memory

[MariuszV1985]

Sony Xperia J has a memory shown:

By Clean Master:
1) Internal - 754MB
2) Device - 2GB
3) SdCard - 16GB

By  SONY:

1)Internal phone storage: 4GB

2)RAM: 512 MB

3)Expansion slot: microSD™, up to 32GB

4)Flash memory: Up to 4 GB [2]

I found on some forum
1) 4GB= 1 GB System +1 GB Aplication +2GB Internal memory
In My phone, I don't have inought  Internal (By Clean Master). ... How to increase it?

[_alexdon_]

* Memory comprises 650 MB of firmware (using 1.3 GB physical memory to secure against memory
errors), 766 MB of “Phone memory” for downloaded applications, and around 2 GB of “Internal storage”
for music, pictures and movies, and some application data.

Read more here:

http://www-support-downloads.sonymobile.com/st26/whitepaper_EN_st26i_xperia_j.pdf

[MariuszV1985]

Thank for your answer. I know this document, but I Still don't, how to increase this memory.

I move all aplication (movable) to this 2GB SD Memory, but this 766MB is full... What can I do?/

[_alexdon_]

Beside rooting,nothing.That is it.You could try to uninstall some apps that you do not use...

[MariuszV1985]

It's rooted..

[_alexdon_ · Accepted solution]

Link2SD guide – never worry about internal memory limits again | Xperia Blog

[MariuszV1985]

Thanks, I Will Try it...

[_alexdon_]

Ok,good luck.

[bluewoody552]

The root tool (DooMLoRD_v4_ROOT-zergRush-busybox-su) is not working for my Sony Xperia J. Have a heap of errors from the runme bat all about permission to write. Can you advise how to correct this issue please