Default [Q] ZTE N986D bootloop (indonesia name is smartfren andromax v-2)

i have problem with my ZTE N986D( Indonesian andromax v2/ new andromax v),bootloop..
conditions are at the root n TWRP custom recovery, after installing a custom rom then restat, after restart stuck on the logo can not enter home screen,. and can not enter recovery mode our TWRP custom recovery pressed power + vol up / vol down , still can not enter recovery mode our TWRP custom recovery..
SIM : CDMA 200 1xEvdo Rev A + GSM EDGE
5.0 Inchi Capacitive Multi-Touch Screen
HD 1280x720 pixels
8MP Auto Focus LED Flash
Secondary cam: 2MP
Prosesor : Quad Core 1.2GHz
Sistem Operasi : Android 4.2 (Jelly Bean)
GPU : PowerVR SGX 544
RAM : 1GB
internal memory : 8GB
External: Up to 32GB
Bluetooth : v3.0
USB: microUSB v2.0
Baterai : Li-Ion 2.300 mAh

please help , give me a solution ... thanks xda-dev