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[Q] MTK6575 i9505 - 3G don't work! How to fix?

OP fmatheus2003

21st January 2014, 04:53 PM   |  #1  
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Hi guys,

I've bought a phone tha is a poor S4 clone.
MTK Root and Tools recognized it like this:

Hardware : MT6575 (MT6517 is Fake!)
Model : GT-I9505
Build number : Android ICS
Build date UTC : 20130725-095723
Android v : 4.1.1
Baseband v: MAUI.11AMD.W11.50.SP.V31.P2, 2013/05/09 17:21
Kernel v : 3.4.0 (wanglei@wanglei-desktop) (gcc version 4.4.3 (GCC) ) #1 Thu Jul 25 17:51:08 CST 2013
Uboot build v : MAIN2.2.ubt.3327
LCD Driver IC : 1-ili9806_6575_dsi

The thing is: The UMTS (3g) network don't work. It only connects through Edge network.

I've tried to restore IMEI - nothing happens...
I've used the MobileUncle tools to see the bandmode, but it shows only the 2g network (the umts mode is grey, and I can't set it up...)

My first theory was that the firmware doesn't support the 3g network, but, since I couldn't find a best firmware, that theory was... stuck.
My second theory was that this SoC (MTK6575) doesn't have 3g access but after some research i saw a lot of people tha have the same SoC and connects to this network, so...

Well, this is my story... someone can help me? Thanks in advance...
21st January 2014, 05:28 PM   |  #2  
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Quote:
Originally Posted by fmatheus2003

Hi guys,

I've bought a phone tha is a poor S4 clone.
MTK Root and Tools recognized it like this:

Hardware : MT6575 (MT6517 is Fake!)
Model : GT-I9505
Build number : Android ICS
Build date UTC : 20130725-095723
Android v : 4.1.1
Baseband v: MAUI.11AMD.W11.50.SP.V31.P2, 2013/05/09 17:21
Kernel v : 3.4.0 (wanglei@wanglei-desktop) (gcc version 4.4.3 (GCC) ) #1 Thu Jul 25 17:51:08 CST 2013
Uboot build v : MAIN2.2.ubt.3327
LCD Driver IC : 1-ili9806_6575_dsi

The thing is: The UMTS (3g) network don't work. It only connects through Edge network.

I've tried to restore IMEI - nothing happens...
I've used the MobileUncle tools to see the bandmode, but it shows only the 2g network (the umts mode is grey, and I can't set it up...)

My first theory was that the firmware doesn't support the 3g network, but, since I couldn't find a best firmware, that theory was... stuck.
My second theory was that this SoC (MTK6575) doesn't have 3g access but after some research i saw a lot of people tha have the same SoC and connects to this network, so...

Well, this is my story... someone can help me? Thanks in advance...

You were most likely right on the device not supporting the bands your carrier uses. Most cheap knock offs are set to use China's bands which don't match most of the rest of the world.

Bat cave One
21st January 2014, 06:20 PM   |  #3  
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Maybe...
Quote:
Originally Posted by zelendel

You were most likely right on the device not supporting the bands your carrier uses. Most cheap knock offs are set to use China's bands which don't match most of the rest of the world.

Bat cave One

Well, my research says that the SoC Mtk6575 Works on WCDMA (3g) in 850/2100 MHz.
In Brazil (where I live) our carriers uses both bands...

The thing is: Maybe a diferente firmware could give me na option to set these bands and put this **** to work....
21st January 2014, 06:25 PM   |  #4  
zelendel's Avatar
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Quote:
Originally Posted by fmatheus2003

Well, my research says that the SoC Mtk6575 Works on WCDMA (3g) in 850/2100 MHz.
In Brazil (where I live) our carriers uses both bands...

The thing is: Maybe a diferente firmware could give me na option to set these bands and put this **** to work....


Just because the chip supports the bands means nothing. It is all about how the antenna is programmed. Most are programmed to work in the country they are released in.

A firmware will not change this. It is hard coded in to the antenna.
21st January 2014, 06:43 PM   |  #5  
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Join Date:Joined: Jan 2014
Hummm
Quote:
Originally Posted by zelendel

Just because the chip supports the bands means nothing. It is all about how the antenna is programmed. Most are programmed to work in the country they are released in.

A firmware will not change this. It is hard coded in to the antenna.

Ok. I got it.

Is there any way to bypass this?
24th June 2014, 02:37 AM   |  #6  
Junior Member
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Join Date:Joined: Jun 2014
Matheus:

Can you send me a complete copy from your room ? Or fix it for download?
I have the same cell phone that yours and it is bricking.
I don't find this room nowhere.



Quote:
Originally Posted by fmatheus2003

Hi guys,


I've bought a phone tha is a poor S4 clone.
MTK Root and Tools recognized it like this:

Hardware : MT6575 (MT6517 is Fake!)
Model : GT-I9505
Build number : Android ICS
Build date UTC : 20130725-095723
Android v : 4.1.1
Baseband v: MAUI.11AMD.W11.50.SP.V31.P2, 2013/05/09 17:21
Kernel v : 3.4.0 (wanglei@wanglei-desktop) (gcc version 4.4.3 (GCC) ) #1 Thu Jul 25 17:51:08 CST 2013
Uboot build v : MAIN2.2.ubt.3327
LCD Driver IC : 1-ili9806_6575_dsi

The thing is: The UMTS (3g) network don't work. It only connects through Edge network.

I've tried to restore IMEI - nothing happens...
I've used the MobileUncle tools to see the bandmode, but it shows only the 2g network (the umts mode is grey, and I can't set it up...)

My first theory was that the firmware doesn't support the 3g network, but, since I couldn't find a best firmware, that theory was... stuck.
My second theory was that this SoC (MTK6575) doesn't have 3g access but after some research i saw a lot of people tha have the same SoC and connects to this network, so...

Well, this is my story... someone can help me? Thanks in advance...

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