[Q] How to fix 3G on MTK6575 based chinese phone - General Questions and Answers

Hi guys, I've recently bought a Star v12 chinese android phone.
Full specs here:
Features:
The MTK third-generation high-speed processing chip,
MT6575-1GHZ system,
4.3"QHD screen,540x960 pixels,
High-definition video HDMI output,Equipped with Android 4.0.3 OS,
WCDMA/GSM,four-bands ,Mobile AP,wifi,GPS+AGPS,
Light sensor,Gravity Sensor,Proximity sensor,Digital compass,
5MP AF+0.3MP front camera,flash light,
1700 mAh lithium ion battery
Star V12 Dual-core MTK6575 1GHz 4.3 inch 960*540 resolution HDMI 6575 Andrews 4.03 os 800 million pixels WCDMA 3G iSTAR V12 smartphone
Ultra-thin PDA Smartphone(Android 4.0.3 OS)
Specification
Screen Size: 4.3" Capacitive touch screen, 5 point multi-touch
Display reulotion: FWVGA screen, 960*540
Color Support: 16 million colors
Screen Technology: Multi-touch Screen
Camera
Camera Resulotion: 8.0MP or 5.0 MP back camera, 0.3MP front camera
Connectivity
Connectivity Technology: GSM & 3G WCDMA network
Network Band: GSM 850/900/1800/1900 MHz & 3G WCDMA 2100 MHz
Data Technology: GPRS, HSPDA
Bluetooth: Bluetooth 2.1
WLan: Wi-Fi IEEE 802.11 b/g/a
USB: USB 2.0
GPS: GPS / A-GPS
Features
Video Player: AVI MP4 3GP MOV MKV FLV
Audio Player: FLAC APE MP3 OGG AMR AAC
Image: JPG PNG BMP GIF
Ringing Tones: Downloadable
Message: SMS, MMS, Email
Phone Book: More than 10000 contacts
Brower: HTML
Game: Downloadable, Google Market
Radio: FM Radio
G-sensor: Yes
Interface/Port: 3.5mm earphone jack / mini USB
Battery
Battery: Built-in Li-on battery, 2000mAh
dby Time: 180-240Hours
Memory
Built-in Memory: 4GB ROM / 512MB RAM,
Memory Card: support to extend TF card to 32GB maximally
Dimensions: 128.2x65.8x12mm
Weight: 150g
Multi-language: English, French, Italian, Deutsch, Spanish, Portuguese, Russian, Indonesian, Turkey, and more
Click to expand...
Click to collapse
I had to do some tweakings to the phone (fixing imei numbers and SMSC) and all that works just fine. The problem I have now is that I can't use 3G network.
I live in Argentina and my carrier is Movistar.
All I could find is that maybe the baseband is wrong (I checked before purchasing the phone and they seemed right) so I have to change it.
I had 3G with my previous phone, a Xperia X8 with minicm9.
If there is any information you need to adress properly the problem, I'll be glad to give it.
Thank you
R.

I have this phone now.iam having imei problem.can you tell me how to solve this? Thanks in advance.

ramanareddyacv said:
I have this phone now.iam having imei problem.can you tell me how to solve this? Thanks in advance.
Click to expand...
Click to collapse
ZOPO IMEI changer can help u. Ask correct IMEI from your seller

Could you fix it?
Pudiste solucionar el tema del 3g?

Related

[Q] B4000 touch diamond 2 - stuck on boot logo

hello i've been busting my head all night and today to find a solution to my problem.
let's start with that, i've got unbranded Chinese smartphone
the main problem i've been having was the RTL alignment on hebrew inerfaces such as SMS, emails etc. (by rtl alignment i mean for example:
if the text will contain a word such as "hello" it will be shown as "olleh", of course the problem is only in hebrew language as i'm just giving an easy example)
at first i successfully rooted the machine.
a program called AndroidRTLPatcher that fixes the problem required me to deodex the os. so i deodexed using xultimate successfully.
then i used AndroidRTLPatcher, finished the patching. then had to reboot and waited for about 20 mins for the system to boot up but it got stucked on the logo screen since then.
been trying to use sp flash tool using bruno's guide
as resetting to factory through phone's recovery interface didn't fix the problem.
sp flash tool didn't work well as i got an error: EBOOT ERROR: (16008)
bruno said to fix the problem you need to do rom dump via a tutorial he linked on the guide
i tried to install many roms that comptatible to mt6573 but when i chose in the recovery mode "update from sd" i got the error message:
E: signature verification failed
hope i managed to explain myself well and didn't break any forum rules as i couldn't find anything related to the phone model i have.
if you need more info or photos please inform me.
atm i can't post links as i'm a newb in this site i'll try another way to post the links
hope you could help me find a solution
thanks in advance
P.S. those are the specs:
odel: B4000
Carrier: Unlocked
Phone Style: Bar, 4.0 inch Capacitive touchscreen
Operating System: Android 2.3 OS (Gingerbread)
Processor: Qualcom MTK MT6573 650MHz
Screen Size: 4.0" Capacitive touch screen, 5 point multi-touch
Display reulotion: WVGA screen, 800*480
Color Support: 16 million colors
Screen Technology: Multi-touch Screen
Camera Resulotion: 3.2MP back camera, 0.3MP front camera
Connectivity Technology: GSM & 3G WCDMA network
Network Band: GSM 850/900/1800/1900 MHz & 3G WCDMA 2100 MHz
Data Technology: GPRS, HSPDA
Bluetooth: Bluetooth 2.1
WLan: Wi-Fi IEEE 802.11 b/g/a
USB: USB 2.0
GPS: GPS / A-GPS
Video Player: AVI MP4 3GP MOV MKV FLV
Audio Player: FLAC APE MP3 OGG AMR AAC
Image: JPG PNG BMP GIF
Ringing Tones: Downloadable
Message: SMS, MMS, Email
Phone Book: More than 1000 contacts
Brower: HTML
Game: Downloadable, Google Market
Radio: FM Radio
G-sensor: Yes
Interface/Port: 3.5mm earphone jack / mini USB
Built-in Memory: 512MB ROM / 256MB RAM,
Memory Card: support to extend TF card to 32GB maximally
Dimensions: 112×64×11mm
Weight: 148g
Multi-language: English, French, Italian, Deutsch, Spanish, Portuguese, Russian, Indonesian, Turkey, and mor

it would be nice if any developer can try build a custom rom for HERO 9500

it would be nice if any developer can try build a custom rom for HERO 9500 (china 3d android phone ) i have test a stock unit, very good in performance and appearance, the spec are like i listed below :
Model: Hero 9500+ RAM 1GB Black/ old version ZOPO ZP900
Band: CPU: MTK6577 ARMv7 Cortex-A9 Dual-core 1.0GHz
GPU: PowerVR SGX531 Ultra
OS: Android Jelly Bean 4.1 or ics 4.0
Memory: RAM : 1GB / ROM : 4GB eMMC MAX supports 64GB Class 12 Micro SD Memory Card (TF Card)
Size: 149.6 x 78 x 10.2 mm
Screen: 5.3" QHD, 540 x 960, 16M Colors (TBD), TFT-LCD Capacitive Multi Touch Screen
Network: Dual Sim, supports W+G / G+G 2G:GSM/GPRS/EDGE: 850/900/1800/1900 MHz
3G:WCDMA/HSPA/HSPA+: 850/2100MHz
GPS: Built In GPS & A.GPS
Connection: Bluetooth with EDR & A2DP Wi-Fi : IEEE 802.11 b/g/n, supports Wi-Fi hotspot micro USB 2.0
Camera: Dual Camera Back 8.0 mega pixel / Auto Focus Front 2.0 mega pixel, supports Skype Video Calls Support to shoot 3GP 720P (1280x720) with sound, Max 30 mins.
Sensor: Gravity Sensor, Proximity Sensor, Light Sensor
Audio: MP3, AAC, WAV, etc. / 3.5 mm Audio Jack, Beats Audio
Special function: G-sensor, P-Sensor, L-Sensor, FM radio, Wifi, GPS, Multi-touch, Dual SIM, Notification LED
others: Li-ion Batteries 2800mAh , 3.5 mm Audio Jack
to see this phone, just google it....key words : hero n9500
* sry im new here, i cant link a picture, usualy i do much reading and observation here than posting, cos one of my job is upgrading my custumers android devices( roms), thank to all develepers, actualy i own a cyber cafe, and im a computer(IT) technician

How to install ROM on chinese Samsung Galaxy S3

Hi everyone,
I read about chinese smartphones at this forum and get a lot informations. I installed SHUAME on my computer and with ADB drivers installed driver for my smartphone. Now I am rooting it. Can someone tell me what ROM can I install on it, and post link here, some english version? These are some information about my smartphone:
Model number: GT-I9500
Kernel version: 2.6.35.7 [email protected] #3
Baseband version: DM_BASE_12A_W12.43 sc6820_modem 11-02-2012
Software version: MocorDroid2.3.5.W12.20_P20.01
Operating System: Google Android 4.1
Processor / CPU: MTK6515 1GHz
Memory / RAM: 512MB
Flash Memory: 256MB Nandflash
External Memory: Micro TF card slot, support max up to 32GB (NOT INCLUDED)
Display: 4" Multi-touch Capacitive Screen
Resolution: 800 x 480 pixels resolution
Touch Control: Full size touch operation
Network: GSM: 800/ 900/ 1800/ 1900MHz
SIM: Support Dual SIM Card Dual Standby
Other Feature WIFI, Bluetooth, FM radio, UC browser, Himarket, MSN, Email, Google search, Ebook, Messaging etc
WIFI: Wi-Fi 802.11a/b/g/n network supported.
Camera: Rear camera is 5.0MP
Button: home, return, menu, power, vol +/-
Input / Output: 1 x TF card slot
1 x Micro USB port
2 x SIM Card port
1 x 3.5mm stereo headphone jack
1 x Built-in speaker
1 x Built-in microphone
Support Audio Formats: MP3, WAV, AAC, WMA
Languages: Czech, German, English, Spanish, French, Italian, Portuguese, Russian, Vietnamese, Chinese and multi language support.
Battery & Power: Built-in 1800mAh Lithium battery
Power Supply: 100~240V max
Dimension: 12.5cm x 6.5cm x 1cm - 4.92inch x 2.56inch x 0.39inch

[Completed] I bricked my TwinTAB T7283gd1 PLS HELP

i bricked my TwinTAB T7283gd1 by installing xposed modules...i hav no custom recovery installed...and i cant find any rom for my device on google...pls suggest me a rom for my device.
my divice info:
Specifications:
Operating System: Google Android Jelly Bean 4.1.2
CPU: MTK 8377, ARM Cortex A9, Dual-Core [ Up to 1.5 GHz ]
GPU: PowerVR SGX 531
3D: OpenGL ES2.0
Memory: 1GB DDR3
Storage: 8GB NAND Flash
External Storage: Support 32GB Micro TF Card [not included]
Display:
Screen Size:7" WSVGA Screen
Resolution: 1024×600 WSVGA Display
Proportion: 16:9
Touch Screen: 5 points Capacitive Touch Screen
Language: Arabic, English, Chinese, French etc.
Battery:
Recharge Type: Adapter or USB Cable [included]
Battery Type: Rechargeable Lithium Battery
Capacity: 3700mAH, 3.7V
Network:
WiFi: Support 802.11 a/b/g/n
WiFi: HotSpot Supported
3G: 850/2100MHz
GSM: 850/900/1800/1900MHz
GPRS: GPRS class 12
EDGE: Multi-Slot Class 12
HSPA: 7.2 Mbps HSDPA/5.76 Mbps HSUPA
GPS: Built-in GPS
Bluetooth: BT 4.0 LE
Audio: 3.5 mm standard OMTP
USB: MINI USB
Charger Type: 110V-220V Input, 5V, DC 2A Output [included]
Camera: Front camera 0.3 Megapixel, backside camera 2 Megapixel
Mic: Inside
Speaker: 1W x1 [Inside]
Video: Support 1080p Full HD video play back
Audio: 3.5 mm OMTP MP3, OGG, AAC etc. LRC lyrics synchronizing, Photo Album, Stereo speaker
Business: Support WORD, EXCEL, POWERPOINT, PDF, TXT office software, Arabic keyboard, Skype Video Calling, QQ, MSN,G-talk, Fring, Yahoo, Gmail, Hotmail
Game: Flash 11.0
I/O Port:
SIM Slot: Yes
Earphone:3.5mm
USB: 5 pin micro, USB 2.0 High Speed
Power Charge: USB
TF Card Slot: microSD (up to 32GB)
Others:
FM Radio: Yes
G-Sensor: Yes
Dimensions: 192.3mm * 122.2mm * 10.2mm
Weight: 370 g
XDA Visitor said:
i bricked my TwinTAB T7283gd1 by installing xposed modules...i hav no custom recovery installed...and i cant find any rom for my device on google...pls suggest me a rom for my device.
my divice info:
Specifications:
Operating System: Google Android Jelly Bean 4.1.2
CPU: MTK 8377, ARM Cortex A9, Dual-Core [ Up to 1.5 GHz ]
GPU: PowerVR SGX 531
3D: OpenGL ES2.0
Memory: 1GB DDR3
Storage: 8GB NAND Flash
External Storage: Support 32GB Micro TF Card [not included]
Display:
Screen Size:7" WSVGA Screen
Resolution: 1024×600 WSVGA Display
Proportion: 16:9
Touch Screen: 5 points Capacitive Touch Screen
Language: Arabic, English, Chinese, French etc.
Battery:
Recharge Type: Adapter or USB Cable [included]
Battery Type: Rechargeable Lithium Battery
Capacity: 3700mAH, 3.7V
Network:
WiFi: Support 802.11 a/b/g/n
WiFi: HotSpot Supported
3G: 850/2100MHz
GSM: 850/900/1800/1900MHz
GPRS: GPRS class 12
EDGE: Multi-Slot Class 12
HSPA: 7.2 Mbps HSDPA/5.76 Mbps HSUPA
GPS: Built-in GPS
Bluetooth: BT 4.0 LE
Audio: 3.5 mm standard OMTP
USB: MINI USB
Charger Type: 110V-220V Input, 5V, DC 2A Output [included]
Camera: Front camera 0.3 Megapixel, backside camera 2 Megapixel
Mic: Inside
Speaker: 1W x1 [Inside]
Video: Support 1080p Full HD video play back
Audio: 3.5 mm OMTP MP3, OGG, AAC etc. LRC lyrics synchronizing, Photo Album, Stereo speaker
Business: Support WORD, EXCEL, POWERPOINT, PDF, TXT office software, Arabic keyboard, Skype Video Calling, QQ, MSN,G-talk, Fring, Yahoo, Gmail, Hotmail
Game: Flash 11.0
I/O Port:
SIM Slot: Yes
Earphone:3.5mm
USB: 5 pin micro, USB 2.0 High Speed
Power Charge: USB
TF Card Slot: microSD (up to 32GB)
Others:
FM Radio: Yes
G-Sensor: Yes
Dimensions: 192.3mm * 122.2mm * 10.2mm
Weight: 370 g
Click to expand...
Click to collapse
Hello, and welcome to XDA!
I am sorry to say, but this site has virtually no resources on your device either. To be precise, just one thread regarding OTG support.
It's going to be a hard road ahead, but you can try this forum thread.
> Android Development and Hacking > Android Q&A, Help & Troubleshooting > [Ask Any Question][Newbie Friendly]
Please note, you will have to register for an account to post there.
One last suggestion, is to contact TwinTAB for a way out (typically a stock ROM).
Hope this helps, and good luck!

Need some help please

New to the forum. Been searching all over the web for a solution for my issue. I bought a phone from wish. It gives this description on the site:
Features:
100% brand new and high quality.
S9 Android Phone - Infinity Display, Octa-Core CPU, 2GB RAM, Android 7.0, 2500mAh, 16MP Dual-Rear Cam
Undergo an unlimited visual experience on a 5.99-Inch infinity display
2500mAh battery treats you to 12 hours continuous usage time
Octa-Core CPU and 2GB RAM set forth a powerful performance
Shoot breathtaking pictures and video with a 16MP Dual-Rear camera
Specification:
Band:
GSM 850/900/1800/1900MHz
WCDMA 850/2100MHZ
General:
OS Version: Android 7.0
CPU: MTK6592 Octa core
GPU: Mali-400MP
Processor Speed (max): 1.5GHz
RAM: 2GB
Internal Memory: 16GB
External Memory: Support up to 128GB
Display Size: 5.99 Inch, 18: 9 FHD + LG In-Cell IPS infinity display
Display Resolution: 2160x1080
Touch Screen: Support Capacitive
Multi-touch: Support 5 Point
Frequency: 2G: GSM 850/900/1800/1900 MHz, 3G: WCDMA 850/900/2100 MHz
IMEI Number: 2
GPS
Bluetooth
Wi-Fi: 802.11 b / g / n
Sensors: Gravity
Wake Gesture
Smart Gesture
Mic and Speaker
Built-in Battery
Battery Size: 2500mAh
Continuous Talk Time: up to 12 hours
13 Megapixel Front-Facing Camera + Dual Rear Camera (16MP + 5MP)
Video Resolution: To be confirmed
Ports:
2 ( WCDMA / GSM) SIM card slot - 2x Nano SIM card OR 1x Nano SIM card + Micro SD card (Note: Nano SIM 1 and Micro SD card can not be used together)
Type-C
Languages:
English, Spanish, Portuguese, Italian, German, French, Russian, Arabic, Malay, Thai, Greek, Ukrainian, Czech, Czech Simplified Chinese, Traditional Chinese
Media Formats:
Video: MP4, 3GP, AVI
Audio: MP3, WMA, WAV
Graphic: JPG, GIF, PNG, BMP
E-Book: TXT
Dimensions:
Main Product Dimensions: 158x 75x 9mm (L x W x D)
Main Product Weight: 250g
Package Includes:
1×Phone(with unremovable battery)
1×Data Cable
1×User Manual
1×Warranty Card
1×Screen Protector
1×Silicon Case
1×SIM Ejector
1×TypeC-to-3.5mm adapter
1x32GB SD Memory Card
I didn't like the ROM, so I tried to flash one I downloaded from here on this site. According to Smart Phone Flash Tool, I have a MT6580 chip set. I first flashed a ROM and it didn't even turn on. I downloaded another ROM and now it turns on, but I can't use my touch screen. I've read that I need the stock ROM to fix this. I can't find the stock ROM. Any help would be greatly appreciated
Thanks for any advice in advance
Macstein said:
New to the forum. Been searching all over the web for a solution for my issue. I bought a phone from wish. It gives this description on the site:.....
Click to expand...
Click to collapse
I'm really not sure what you have specifically and I was unsuccessful in locating your device but, you should be able to obtain some member guidance within one of the following threads that's specific to Mediatek devices.
https://forum.xda-developers.com/showthread.php?t=2160490
https://forum.xda-developers.com/showthread.php?t=2701283
https://forum.xda-developers.com/showthread.php?t=3373520
https://forum.xda-developers.com/showthread.php?t=2464143
https://forum.xda-developers.com/showthread.php?t=3679512
There's other possibilities but, those should give you a good start... :thumbup:
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.

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