Android update dead device

Good afternoon, I’m from Brazil and bought a device with android china, I was doing an update and the phone went out and does not care and does not charge more. this is the device address in china and following specifications: http: // www . namo . com.cn/namo/category.php?id=16

Brand NAMO
Model N860
Color Black
Type Brand New
Form Factor Bar Phone
Operating System Android 4.0
Keyboard Touch Screen
Language RussiaSouth AfricaIndonesia, Malaysia, Bengal,Bosnian, Catalonia,Czech, Denmark, Germany,Estonia, English, Espanol,FranceCroatia Congo,Italy,Cambodia,Kiswahili,Latvia, Lietuviu ,Macedonia, Hungary, Netherlands, Norway, Poland,portugues(Brasil), portugues,Romana, Switzerland,Slovakia,Finland, Sweden, Philippines,VietnamTurkey, urdu,Persian, Arab, Korea, Spanish,Simplified Chinese, Traditional Chinese
Networking GSM / WCDMA
Frequency 2GGSM 900 / 1800MHz;3GWCDMA 2100MHz MHz
Data Transfer GPRS / EDGE / HSDPA
SIM Type Ordinary SIM
SIM Slot 2
Network Standby Dual Network Standby
Network Conversation One-Party Conversation Only
Wi-Fi Yes
GPS Yes
Processor MTK6577(1.0GHz)
CPU Type Dual-Core
GPU PowerVR SGX531
RAM 512MB
ROM 4GB
Available Memory 2.6GB
Memory Card Support Micro SD / TF card up to 32GB
Screen Size 4.0 Inch
Touch Screen Capacitive
Resolution 800×480 Pixels
Colors 16M
Camera 5.0 MP
Flash Yes
Auto Focus Supports
Video 720p1280×720
Touch Focus Yes
Secondary Camera Supported Yes
Secondary Camera Lens 0.3MP
Bluetooth Support V3.0
I/O Interface 2*SIM slot1*micro USB1*TFslot1*3.5mm
Software Google play, E-mail, flight time, memo, etc.Map
Features 4.0″ capacitive screen + GPS + Wi-Fi + Dual-SIM + FM + Bluetooth + 5.0 MP camera + 4GB ROM
FM Yes
TV No
Format Supported mp3accamroggm4amidwmaflacapeaacwavMP4/3GP/RMVB/AVI/RM/MKV
Sensor G-sensor
Battery Type Lithium
Capacity 1500 mAh
Talk Time 280 Minutes
Standby Time 100 Hours

the phone was android 4.0.4 with a few defects.
already tried to contact support and ningem answers, I need a compatible ROM for use by flashtools.