Asus Zenfone 6 IMEI "Null" Solution

hi all

i fixed 100% asus zenfone 6 and zenfone 5 imei issue or baseband unknown
just do steps !

for zenfone 6 :

1- your zenfone android version must be 5.0 ( we have imei problem on this version after update) and insert 2 simcards

2- downgrade your zenfone 6 first with this link : 

ww:
dlcdnet.asus.com/pub/ASUS/ZenFone/UL-ASUS_T00F-WW-6.3.3.3-user.zip
tw:

dlcdnet.asus.com/pub/ASUS/ZenFone/A600CG/UL-ASUS_T00F-TW-6.3.3.3-user.zip
after download  put zip file into the internal memory and plug off your usb then comes update notification and touch that update notification
then wait until your phone go up and plug your usb again and do step 3

3. downgrade zenfone 6 second with this link:

ww:

dlcdnet.asus.com/pub/ASUS/ZenFone/UL-ASUS_T00F-WW-6.2.2.2-user.zip
tw:

dlcdnet.asus.com/pub/ASUS/ZenFone/A600CG/UL-ASUS_T00F-TW-6.2.2.2-user.zip
put this zip file like step 2 and do what i say on step 2

4.after downgrade your zenfone will be reboot and go up with android 4.3 

now your imei and baseband fixed... all done

(for zenfone 5 you need download this roms on zenfone 5 support page and then do steps)