to gain superuser at this alcatel 4010x (easier method)
http://www.mgyun.com/
DO THIS AT UR OWN RISK

in my case i have did this twice in 2 sets
-root it in current using state or u in factory reseted state both fine
-installed pdanet for android 4.12
-installed alcatel one touch manager
-and the most important root tools->刷机大师

if u cant read chinese/no experince on rooting please refer picture i had uploaded
1st- download the root tool from this website http://www.mgyun.com/
[attachmentid=3415866]
then install it on ur computer

2nd- in the phone pls check/tick the USB DEBUGGING(always check this when u root any phone) under phone setting>application>development

3rd- launch 刷机大师 and connect ur phone
[attachmentid=3415877]
connecting...
[attachmentid=3415870]
this mean box showing current root status=NO(one click root)
so click the red boxed area

4th- confirmation before root>click the red area to confirm root the phone
[attachmentid=3415875]
ps:it tells process will reboot ur phone(of course u can click the cancel right beside if u will lose ur ball when the phone happen sudden reboot)

5th- checking and all bla bla bla rooting process (takes around a minutes in my 2nd gen core i7 )
[attachmentid=3415878]

6th- phone rooted when on the 2nd boot with around 10 usb plugin and out sound around 10times please check the status same as mine means ur phone are ROOTED
[attachmentid=3415879]

for UNROOTING factory reset not working , i used the ONE TOUCH UPGRADE S 2.7.5 to reflash stock rom

beside i have tested the recovery provided by this 刷机大师 software [attachmentid=3415885]
-factory reset
-backup(file store at /sdcard)(takes more than 5 mins)
-restore(choose a file named userdata_xxxxxx_xxxxx.backup)
so,i guess this is the noob proof guide i can provide,any problem on the tutorial pm me to change,goodluck

ermmmm.. but i use swapper and i get more free ram than u.. 75++mb with holo launcher go sms, other additional apps.