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Getting full 4g T-mobile speeds on ZL?

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marksee
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Exclamation Getting full 4g T-mobile speeds on ZL?

T-mobile limits 4g speeds on unlocked phones apparently. I tested a t-mobile samsung galaxy and my xperia zl running 4.2.2 , baseband 9x15a kernel 3.4.0 and seems like there's a big difference. In a bad spot, the galaxy was getting about 6mbps, wheres my phone was at 0.30mbps. Whereas on good spots, galaxy got about 23, and zl got about 13mbps.
Anyone have any suggestions how to get the full 4G speed of T-mobile network. i am in the LA, California region.
 
rwill80
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I have a ZL and live in Long Beach... Also with T-Mobile. My LTE speeds average about 25mbps. I've even gotten almost 50 once but that may have been a fluke. I suspect it may be your area or just how how the ZL picks up the signal.

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marksee
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Originally Posted by rwill80 View Post
I have a ZL and live in Long Beach... Also with T-Mobile. My LTE speeds average about 25mbps. I've even gotten almost 50 once but that may have been a fluke. I suspect it may be your area or just how how the ZL picks up the signal.

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Hi Rwill80, can you post which Rom and also Baseband, Kernel you're using. If possible, screenshot the bottom of settings>about page and i'll try to replicate it on my device.
 
rwill80
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Currently using CM11 but have gotten similar speed results with stock Sony ROM as we.

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rwill80
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Another possibility is if you're using an older Sim card... I have the newest ones available from T-Mobile.

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scifan
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Another possibility is if you're using an older Sim card... I have the newest ones available from T-Mobile.

Sent from my C6503 using xda app-developers app
Let me check when I'm away from work... I haven't tested since loading 4.3 on my phone... what I saw before was an average of about ~ 16-25mb down and between 6-14mb up...

This is in the Seattle, Washington area...
 
marksee
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Another possibility is if you're using an older Sim card... I have the newest ones available from T-Mobile.

Sent from my C6503 using xda app-developers app
Could be possible, but unlikely since i just got a new sim last month. It says TM9258 and has "ISIS" written on it.
 
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Currently using CM11 but have gotten similar speed results with stock Sony ROM as we.

Sent from my C6503 using xda app-developers app

Thanks, we have the same baseband, still seems odd. can you also post the screenshot of your APN settings from settings> mobile networks>access point names> (select whichever is active). I'll match it and then test to see if it's any use.
I currently have fast.t-mobile.com as the APN.
 
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Hmmm... seems like reasonably decent numbers...

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rwill80
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Hopefully this is of some help. I do think its quite possibly just the area and how each phone receives the signal. But who knows... There could be more going on then I know.

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