[Q] switching between h+ 3g edge and "no sim" constantly

[hddr3]

I have sim unlocked to t-mobile and it switches between h+, 3g, edge, and no sim very often for no reason...
Is there any fix to this ?

 

[mjohnson4580]

I have my phone on straight talk att and it constantly switchs as well. I read that its a GSM thing and that to save data it goes to a lower state until in use. Also on mine I get 3g and h+ plus but when the icon says h I get no data at all. Does this phone not support att hsdpa network?

Sent from my SCH-I605 using Tapatalk

 

[hddr3]

I have my phone on straight talk att and it constantly switchs as well. I read that its a GSM thing and that to save data it goes to a lower state until in use. Also on mine I get 3g and h+ plus but when the icon says h I get no data at all. Does this phone not support att hsdpa network?

Sent from my SCH-I605 using Tapatalk

I have I only tried t-mobile and metropcs which both do the same thing. Have not yet tried at&t

 

[khanam]

Goto phone dailer, and enter *#27663368378# for the debug service menu.
In "ServiceMode", select [1] UMTS
In "UMTS MAIN MENU", select [1] DEBUG SCREEN
In "DEBUG SCREEN", select [6] PHONE CONTROL
In "PHONE CONTROL", select [7] NETWORK CONTROL
In "NETWORK CONTROL", select [2] BAND SELECTION

Here under [4]LTE BAND PREFERENCE you can change the band.

Once you do that, flash jedi x2 from tmobile forum (i am assuming you are on the 4.3 firmware already) - then every thing will work. thats what worked for me - no more switching from 3 to 3g to h+ to no service

 

[WtfAndroiD007]

knanam...how do you initiate debugging after entering the code. I hit send after and got a " cannot complete" (something like that). Would that remedy having only HSDPA+, no LTE? I'm also on AT&T. The.

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---------- Post added at 08:21 PM ---------- Previous post was at 08:20 PM ----------

Thx*

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[thakrew317]

I have a Verizon branded note 2 and I can only get edge I'm on 4.3 with a locked bootloader also...is there a fix yet to unlock...I can't find sh** on unlocking the bootloader besides causal which dosnt work

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