Need restore IMEI, but MTK Droid Tools dont works

[psycomac]

Hi guys. I have problems to restore my IMEI with MTK Droid Tools.
Is all right until pulse "replace IMEI" then appears these lines:

--- ERROR: dev/radio/pttycmd1 inaccessible, Should be Root Shell
--- ERROR: NOT pttycmd1 device found!

I have UMI X1S MT6589

Please help me. My English is very poor. I wrote this with the help of Google translator.

I got this from another source and it worked for me and my MTK phone

Dial “* # * # 3646633 # * # * 2- then follow that path –> CDS info –> Radio info –> Phone1 (for the first imei) 3- at the top there is a command line which begins “AT+” just type there “AT +EGMR=1,7,”IMEI_1? (instead of IMEI_1 put your first imei number) 4- hit send command 5-if you done just reboot the phone, if you change the second imei go to step 2 and select “Phone2? 6-and enter the code “AT +EGMR=1,10,”IMEI_2? (instead of IMEI_2 put your second imei number) hit send command 7-reboot 8-Dail ” *#06#” Check Imei(onlyshow the first one)