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Old September 1st, 2010, 10:33 AM   #1 (permalink)
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Default Turning on 4G Makes my EVO Sluggish...

My apologies if this has already been discussed in a previous thread, but I tried to search and didn't see it mentioned...

It seems here lately that whenever I turn on my 4G radio (I'm in a 4G area), my phone becomes very sluggish. Browsing and pinch-to-zoom using the Dolphin Browser becomes stuttered, swiping between home screens is delayed, pretty much anything I do is slower. I've killed all apps, but still get the same results. Once I turn the 4G off, the phone works fine. Just wondering if anyone else has run into this issue. It seems to be counter-productive to have a faster data speed when it makes your phone slower, basically canceling each other out.

Any suggestions or feedback is greatly appreciated.

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Old September 1st, 2010, 09:34 PM   #2 (permalink)
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i have experienced the same thing today, just got 4g in my city. Are you rooted? I am running a custom kernel, going to go back to stock kernel and see if that helps.
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Old September 1st, 2010, 09:39 PM   #3 (permalink)
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Not rooted, standard 2.2 froyo.
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Old November 2nd, 2010, 11:56 AM   #4 (permalink)
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Default Same Problem - no solution

Been having the same problem, but I have no solution to offer. standard 2.2
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Old November 2nd, 2010, 12:00 PM   #5 (permalink)
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Since I still haven't been able to find a solution for this, I'm going to do a factory reset and start from scratch. If that doesn't work, I think I'll see if I can exchange it. I'll keep you posted.
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Old November 2nd, 2010, 12:05 PM   #6 (permalink)
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Sound like a problem cuz I'm in LA and no 4g yet (ok I'm am right now cuz I found a tower that is testing.10.55 download speed!) Mine does the same and I called sprint about it a month ago and they said till wait to see if it does it when 4g is live. Mine does it once in a while. I just reboot the phone then it acts normal. My bro in law got his about 3 weeks after i did and he has the same issue. Is complain to sprint so they can track this. Maybe the 4g radio needs to be tweaked?
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Old November 2nd, 2010, 03:32 PM   #7 (permalink)
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Install a CPU monitor and check out my thread about the 4G problems I am having.

100% CPU usage, but it doesn't add up

EDIT:

I just noticed that turning the 4G off on your phone fixes this. It does not fix mine. Once the CPU is at 100%, usually there is nothing to fix it. However, one time, Airplane mode snapped it out of the 4G bug.
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Old November 8th, 2010, 12:45 PM   #8 (permalink)
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I'm having the same problem.
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Old November 9th, 2010, 01:02 AM   #9 (permalink)
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have nay of you tried the method of turning on 4g via the settings menu rather than using the widget. some seem to think it makes a difference. others have installed a leaked update that may be released ota soon and that appeared to fix the problem for them
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