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Hi Guys
Samsung Captivate is my very first Smartphone and i always knew i was gonna get an android phone.
I bought this phone yesterday and i absolutely love it.
But i am facing some problems
1. the phone is a bit laggy.
2. the battery life doesnt seem very great.
3. The third one is very weird. I went to the android market to download apps. Once i select an app to download and install, there is no notification on the top area where it should show it. I mean it takes almost 10-15 minutes for that notification to show up and the phone is very unresponsive during these times. Also the music player crashed a couple of times.
Has anyone come across this problem. Please let me know!
Well , that was the first part..
I want to know the experiences of people who have already rooted the phone and installed Froyo on it. What are the noticeaable changes? Is there any improvement in battery life?
I am pretty sure i wanna root this phone and get rid of the ATT apps etc etc.
BTW i have attached a wallpaper which i hope u guys will like
Cheers
carporsche said:
Hi Guys
Samsung Captivate is my very first Smartphone and i always knew i was gonna get an android phone.
I bought this phone yesterday and i absolutely love it.
But i am facing some problems
1. the phone is a bit laggy.
2. the battery life doesnt seem very great.
3. The third one is very weird. I went to the android market to download apps. Once i select an app to download and install, there is no notification on the top area where it should show it. I mean it takes almost 10-15 minutes for that notification to show up and the phone is very unresponsive during these times. Also the music player crashed a couple of times.
Has anyone come across this problem. Please let me know!
Well , that was the first part..
I want to know the experiences of people who have already rooted the phone and installed Froyo on it. What are the noticeaable changes? Is there any improvement in battery life?
I am pretty sure i wanna root this phone and get rid of the ATT apps etc etc.
BTW i have attached a wallpaper which i hope u guys will like
Cheers
Click to expand...
Click to collapse
There is no Froyo for captivate , not yet anyway.
Root by itself doesn't fix anything , just lets you change system files and tinker around, more freedom so to speak.
Personally i am not having those problems, maybe you installed something that is eating up all resources, i have had similar problems on my Nexus one when i was downloading bunch of random programs and experimenting...
Try one of those app killers or restart phone maybe.
ghost77 said:
There is no Froyo for captivate , not yet anyway.
Root by itself doesn't fix anything , just lets you change system files and tinker around, more freedom so to speak.
Personally i am not having those problems, maybe you installed something that is eating up all resources, i have had similar problems on my Nexus one when i was downloading bunch of random programs and experimenting...
Try one of those app killers or restart phone maybe.
Click to expand...
Click to collapse
I factory reset my phone too , and i still have to install apps after resetting. Will keep you guys updated. BTW i thought rooting was to install froyo on the captivate.
I did not know tht it was just for the workarounds.
Hello guys
Please help me
I still am facing the same problem.
I have installed the AppBrain and fest web browser apps too, but somehow it still takes me a minimum of 10-15 mins before the download begins. And during that time the phone is very slow and unresponsive.
Is anyone else facing the same problem.
Please let me know!
------------------------
itzz(AN)dRoiD
I've noticed something similar to what you are talking about, but defiantly not to such extend. Marketplace seems to be slow on my phone, at least comparing to my brother's Evo. Sometimes just after I start download of a new app, the phone becomes unresponsive for a bit, but it doesn't freeze or anything, just I start noticing some lag, that's all. To your other concerns:
1. Remove Live Wallpaper and as many widgets from your screen as you can. After I did that, I don't have any lag at all. You can also use manual task killer application to shut down all of the AT&T crap that runs on background (and prevent them to start up again).
2. Coming from feature phone, battery live will always look bad on the Smartphone. For me, battery lasts the whole day, from 9AM till 12PM even with a heavy use. For a Smartphone, that's good results.
Only times I have had lag is when something is installing. Also when my network connection is bad and something is trying to pull data.
But then again i just switched from a Kaiser running WinMo to this phone, so I may just be use to lag by now
Sent from my SAMSUNG-SGH-I897 using XDA App
Just got my thunderbolt a few days ago. I haven't had the chance to root just yet. Too many days at work.
I had a bad problem with resetting on my EVO... I'd like to make sure this doesn't turn into round 2.
Its been sluggish on and off all day. Lagging through my texts messages while I am tethered to my laptop on LTE. It reset on me eariler while I was tethered. Did I overheat this thing?
Any input? Or where to look/start troubleshooting I would greatly appreciate it.
Thanks!
Sounds weird. I haven't had any problems with mine.
Maybe a defective device? I have no idea.
cypherx82 said:
Sounds weird. I haven't had any problems with mine.
Maybe a defective device? I have no idea.
Click to expand...
Click to collapse
Hmm another odd thing it does, is during a phone call the top part of the screen around the status bar kind of gets a greenish tint during the phone call if the person I am talking to doesn't have a picture. Is that the updated sense doing that? My Evo never did it. I'm gonna try and stress it again... I couldn't get it to swype properly, it would end the word before the I finished swyping it.
I hope I don't have a defective device
trueplaya89 said:
Hmm another odd thing it does, is during a phone call the top part of the screen around the status bar kind of gets a greenish tint during the phone call if the person I am talking to doesn't have a picture. Is that the updated sense doing that? My Evo never did it. I'm gonna try and stress it again... I couldn't get it to swype properly, it would end the word before the I finished swyping it.
I hope I don't have a defective device
Click to expand...
Click to collapse
The green tint is normal
Sent from my ADR6400L using XDA Premium App
trueplaya89 said:
Hmm another odd thing it does, is during a phone call the top part of the screen around the status bar kind of gets a greenish tint during the phone call if the person I am talking to doesn't have a picture. Is that the updated sense doing that? My Evo never did it. I'm gonna try and stress it again... I couldn't get it to swype properly, it would end the word before the I finished swyping it.
I hope I don't have a defective device
Click to expand...
Click to collapse
Yeah, the green tint is normal, but I don't know about the rest.
Maybe you might wanna take a trip to Verizon and ask them.
cypherx82 said:
Yeah, the green tint is normal, but I don't know about the rest.
Maybe you might wanna take a trip to Verizon and ask them.
Click to expand...
Click to collapse
Might have to. Kinda wish I would have bought instore now. I'd imagine that would make potential swapping much easier!
This phone is awesome. I personally dont like waiting for devs to finish ROm/Kernals so i will be trying to bulid my own. Verizon / HTC have so many bloated items in this phone its unreal. Just debloating the phone makes it run faster via quadrant, overclocking it to around 1.4 to 1.5 is the most economical and i beleive most are able to do it with the required stock voltage (minues a little) and i get about 2200 on my 1.4ghz Senseless Virus ROM. Anyhow. The only thingthat gets to me is the lack of installed apps. Otherwise its freaking fast.
me and 9 other co-workers all got the thunderbolt the day it came out. two of us had horrific battery life and some lagging issues as well. i just wiped data and cache and seemed to fix it right up. you can give that a go or just root it and play around with all the kernels!!!!!!!! lol i can't go more than a few hours without flashing a new kernel...so addicting!!!!
Even before I rooted and debloated mine I never had even the slightest lag. I would recommend trying to get it exchanged. It shouldn't lag at all unless you have some kind of huge app constantly sucking CPU and RAM in the background.
Sent from my ADR6400L using XDA App
JBO1018 said:
Even before I rooted and debloated mine I never had even the slightest lag. I would recommend trying to get it exchanged. It shouldn't lag at all unless you have some kind of huge app constantly sucking CPU and RAM in the background.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
Yea, I am getting force closes in the stock default text message app. Only apps I have installed are dolphin browser mini, swype, tweetdeck.
While in my 4g area yesterday during tether I had a few periods where the 4g would connect on and off for a few minutes before it solidified itself..
Do I have a dud? Or should I root it and see if these problems continue? Since I bought it from Letstalk.com, Would they even let me exchange it at a Verizon store?
Sounds like a dud. Just take a trip to Verizon and see what try can do.
Sent from my ADR6400L
I really dont play games on my phone. Though recently i wanted to try a few games. I notice after playing the more graphically intense games for awhile my phone will get really hot. after about 30 mins or so the phone gets hot. games play real laggy adn eventual will lock up. close and often ill notice that my sd card will remount. I dont get any errors of force close messages. Anybody else notice this or have this issue? I dont really know if its the just the phone or some unknown issue so i figured i would ask.
Just a side not too. i notice i lose 4g once in a great while. i just switch from airplane mode and back and 4g comes right back. I live in the middle of a 4g area. This is also my 5th clnr and non of the others ever did this. Also my wife's charge dont do this at all. the other 4 phones had other issues like blown speaker, lock up issues etc but never this. Did i get set another bad phone or would getting a new sm card or factory reset fix this issue?
I should also note. Phone is rooted running stock rom but has imnuts pbj time voodoo kernel
If it makes you feel better, mine drops data at least 3 times a day.
Sent from my Droid Charge running GummyCharged 2.0
Undzis said:
I really dont play games on my phone. Though recently i wanted to try a few games. I notice after playing the more graphically intense games for awhile my phone will get really hot. after about 30 mins or so the phone gets hot. games play real laggy adn eventual will lock up. close and often ill notice that my sd card will remount. I dont get any errors of force close messages. Anybody else notice this or have this issue? I dont really know if its the just the phone or some unknown issue so i figured i would ask.
Just a side not too. i notice i lose 4g once in a great while. i just switch from airplane mode and back and 4g comes right back. I live in the middle of a 4g area. This is also my 5th clnr and non of the others ever did this. Also my wife's charge dont do this at all. the other 4 phones had other issues like blown speaker, lock up issues etc but never this. Did i get set another bad phone or would getting a new sm card or factory reset fix this issue?
I should also note. Phone is rooted running stock rom but has imnuts pbj time voodoo kernel
Click to expand...
Click to collapse
Are you overclocking? If you are you might want to bring it down some. For the connection problem search around the charge forums, there are some instructions on how to replace the stock modem with the new leak epw1. Also my best recommendation is to flash one of the roms in xda specially humble. They're very stable.
Sent from my SCH-I510 using xda premium
Here is the link where you can get the new modem and flash it with Odin3 1.82, and if you are adventurous try to flash the new gingerbread rom as well. Look around xda for tutorials on how to use Odin.
www.mydroidworld.com/forums/droid-c...3-4-ep1w-leaked-official-build.html#post99504
Sent from my SCH-I510 using xda premium
No im not overclocked. i dont drop 4g reg. i stay a constant at 4bar on 4g. its like ever few days i lose 4g and have to reset or go in and out of airplane mode to rest. So its not a huge issue but non of the other phones nor my wife's phone ever lost 4g.
Ill try the modem though. thanks for the link.
Hi there, I hope you guys can help me out on this.
I just got my HOS a few days ago and it was all good.
Rooted it after 1 day, everything was fine.. at first.
Played a few games, installed themes and so on. After a few hours, my HOS began to vibrate out of nowhere and apps started here and there, menu opens on its own and all that stuff. It was out of control xD
I then saw that theres an update available. Flashed stock recovery and unrooted it. Afterwards, I installed 1.78. Still unrooted, downloading most of my Apps again, works flawless. Gaming(specially Temple Run xD) is smooth.
Yesterday, I decided to root it again. At first no problems at all.
Just now on the train, playing Temple Run again, my HOS started going crazy, vibrating all the time as if it is pressing buttons on its own and I see the phone doing all kinda stuff(opening new apps, browsing thru home screen etc xD).
Has anyone else expierenced something similar? I have no idea where its coming from and it really annoys the hell out of me.
Right now I'm on TrickDroid v3.1 (wiped system/data/dalvik/cache before flashing)
Kernel: 3.0.8-01136-g9d2ad32
Baseband: 0.16.31501S.17_2_10.23.31501S.10L
Build: 1.70.666.1 CL52668
That really is strange !!! Its as if root contains some sort of poltergeist
I would have imagined a factory reset would have cleared it up, But in your case it didnt....
Have you tried an alternative rooting method ?
Nope, I did not. Always used the All-In-One Toolkit, except for when I flashed Trickdroid, since it comes rooted.
Is it ok if I unroot the HOS with Rootkeeper(is this just temp. unroot?) and then root it again with Superboot?
Unbranded HOS bought in Germany, if that matters. Also, no other recovery works for me except Intermin, CWM just won't boot for me.
that is weird...
Unlocking the bootloader was successful right ?
I dont understand why your phone is rejecting software lol.. Oh and I didnt know root keeper can unroot ive never used it..
how i got root was by flashing paul obriens recovery and then the root package zip file.. I did this on day one and have never had any issues at all.. Ive tested every single ROM and every single recovery lol..
Make a nandroid in recovery and just test out different methods and try get this issue fixed. If you have any issues just restore the nandroid..
Check your phone for remote access apps, maybe you got hacked. Most of those require root to function. Also check your google account for which IPs logged in and check the password recovery options for weird emailadresses and phonenumbers...
Ars has a writeup on hardening your android device, not very technical but some good stuff there. http://arstechnica.com/security/201...-smartphone-against-stalkers-android-edition/
Forget whatever i wrote.
My HOS registers my thumb, even tho I'm not touching it at all. If I'm like 5mm away from the screen, it registers it as if I'd touched it. My gf also has a HOS and it acts only if I touch the screen.
I also noticed that the hotter my HOS gets, the distance increases at which it recognized my "touch".
The distant screen touch has happened on my uprooted tmo us HOS. I've also experienced some craziness out of the device. I've kept it stock, no unrooting/rooting going on.
I was thinking an exchange with HTC cause I also have excessive battery drain and wavy lines in the screen but now I also have an awesome cracked screen too :-\
Sent from my HTC VLE_U using XDA
i also dont need to touch my screen to select something
I just hover my finger over the app, real close to the screen and it selects it...
I guess we have special powers
i also dont need to touch my screen to select something
Click to expand...
Click to collapse
Same here.
lets keep this quiet, We dont want people to know we are superhuman...
I cant be arsed with the fan mail from the CIA,,, Nor do i have the time to fight crime and save the world....
Id rather just continue to flash a ROM.
Been contemplating for a while whether to post this as it will come off as rather trollish. Had my Infuse for over a year now. When I first got it I noticed there were some "issues". I remained patient hoping or thinking maybe when GB was released it would improve. It did not. Later I needed to root this phone and came here, found a ROM that had all the AT&T junk stripped out. Phone worked better, but still had these issues.
I got to the point that I knew I would never again purchase either a Samsung phone or Android. Did not know what the culprit was. Just recently I had the chance to really take a look at an HTC EVO, and I realized that Samsung is the problem, not Android.
Number one issue is that this phone is sluggish, and sometimes unresponsive. I will touch whatever button and get that vibrating acknowledgement, but nothing happens. I will be in the app menu and wish to exist and the home button just does not respond.
Yesterday I missed a call because the bloody phone just did not respond, even though I touched the answer button. Other times I just can not make a call. I dial number, and the phone just sits there doing nothing. Eventually I just pull out the battery and restart the phone to make a simple bloody call. I had a HTC WinMo phone for years and never once experienced this. No matter how farked the OS could get with some app or whatever, the phone function always worked.
I do not run a lot of apps, and recently have experienced these issues with almost literally no apps installed. I will then add something like GO taskmanger just to confirm that the unresponsive behavior is not due to some app taking up memory/CPU etc..
Sorry for the long post, but I am at my wits end with this bloody phone. The fact that I miss calls when the **** phone is right in my hand is unacceptable. So before placing this phone in a box filled with C4 and shooting this to the moon, hoping that maybe a solution is out there.
p.s. I have 2 Infuse in use, both have the same issue.
What firmware are you running?
Is it the same firmware on both phones?
What is the launcher?
Have you tried a different modem?
Are you using a battery saver like juice defender?
Are you using an ad blocker?
Are you using a specific kernel? Oc? Uv?
Need for specific info
ssa2204 said:
Been contemplating for a while whether to post this as it will come off as rather trollish. Had my Infuse for over a year now. When I first got it I noticed there were some "issues". I remained patient hoping or thinking maybe when GB was released it would improve. It did not. Later I needed to root this phone and came here, found a ROM that had all the AT&T junk stripped out. Phone worked better, but still had these issues.
I got to the point that I knew I would never again purchase either a Samsung phone or Android. Did not know what the culprit was. Just recently I had the chance to really take a look at an HTC EVO, and I realized that Samsung is the problem, not Android.
Number one issue is that this phone is sluggish, and sometimes unresponsive. I will touch whatever button and get that vibrating acknowledgement, but nothing happens. I will be in the app menu and wish to exist and the home button just does not respond.
Yesterday I missed a call because the bloody phone just did not respond, even though I touched the answer button. Other times I just can not make a call. I dial number, and the phone just sits there doing nothing. Eventually I just pull out the battery and restart the phone to make a simple bloody call. I had a HTC WinMo phone for years and never once experienced this. No matter how farked the OS could get with some app or whatever, the phone function always worked.
I do not run a lot of apps, and recently have experienced these issues with almost literally no apps installed. I will then add something like GO taskmanger just to confirm that the unresponsive behavior is not due to some app taking up memory/CPU etc..
Sorry for the long post, but I am at my wits end with this bloody phone. The fact that I miss calls when the **** phone is right in my hand is unacceptable. So before placing this phone in a box filled with C4 and shooting this to the moon, hoping that maybe a solution is out there.
p.s. I have 2 Infuse in use, both have the same issue.
Click to expand...
Click to collapse
You know, for the rather lengthy post, you really have not explained any detail about your issue.. You have a generic 'I have an issue, the Infuse sucks' post and its not going to help anyone resolve your issue. I find it EXTREMELY hard to believe that you have 2 infuses having the SAME EXACT ISSUE. Yes, there will be times when you get a defective phone or it isnt working up to your standards, but to have 2 defective phones with the same defect? You need to play the lottery. Also, i suggest you send the phones back. It sounds like youve already made your mind up and have pretty much bashed the samsung infuse in that entire post. The same samsung infuse that myself, and plenty of other people live with day to day and have absolutely 0 complaints.
I will give you $20.00 a piece for them!!!!
ssa2204 said:
Been contemplating for a while whether to post this as it will come off as rather trollish. Had my Infuse for over a year now. When I first got it I noticed there were some "issues". I remained patient hoping or thinking maybe when GB was released it would improve. It did not. Later I needed to root this phone and came here, found a ROM that had all the AT&T junk stripped out. Phone worked better, but still had these issues.
I got to the point that I knew I would never again purchase either a Samsung phone or Android. Did not know what the culprit was. Just recently I had the chance to really take a look at an HTC EVO, and I realized that Samsung is the problem, not Android.
Number one issue is that this phone is sluggish, and sometimes unresponsive. I will touch whatever button and get that vibrating acknowledgement, but nothing happens. I will be in the app menu and wish to exist and the home button just does not respond.
Yesterday I missed a call because the bloody phone just did not respond, even though I touched the answer button. Other times I just can not make a call. I dial number, and the phone just sits there doing nothing. Eventually I just pull out the battery and restart the phone to make a simple bloody call. I had a HTC WinMo phone for years and never once experienced this. No matter how farked the OS could get with some app or whatever, the phone function always worked.
I do not run a lot of apps, and recently have experienced these issues with almost literally no apps installed. I will then add something like GO taskmanger just to confirm that the unresponsive behavior is not due to some app taking up memory/CPU etc..
Sorry for the long post, but I am at my wits end with this bloody phone. The fact that I miss calls when the **** phone is right in my hand is unacceptable. So before placing this phone in a box filled with C4 and shooting this to the moon, hoping that maybe a solution is out there.
p.s. I have 2 Infuse in use, both have the same issue.
Click to expand...
Click to collapse
Simple . Hack it and put cm7 on it if you really need speed. Maybe its your screen protecter. Wipe the screen off. Cm9 can be sluggish, for speed go to miui on gingerbread or cm7
Id be willing to buy one of the infuses
Trust me...sounds like you got two defective units...which like Scott, I find hard to believe...but hey its possible-idk when you got hem.but if it hasn't been a year then put them back to stock with gtgs unbrick and file a warranty claim with Samsung...the infuse is a great phone and I never had the problem you described...I do have a question though...did you get them both at the same time? Cause I don't see why you would get a second if your first was having problems
Anyways...if you wanna sell one hmu...I may buy one depending on the price and if I can get the money (I think I already may have one lined up for $170 just need to get the money)
Sent from my HTC PH39100 using xda app-developers app
Never really had any problems with samsungs beside the only issue I have ever had with ALL Samsung phones .. They have the worst RF signal/strength out of any company! I miss the days of my old Nokia RF ..
Sent from my SAMSUNG-SGH-I997 using xda app-developers app
Android Law #1: Costum ROMs are ALWAYS 10x better than stock.
Wow an i cant find one issue. Always great signal never inresponsive u sure u have an infuse
Sent from my SGH-I997 using xda premium
Prometh1216 said:
Wow an i cant find one issue. Always great signal never inresponsive u sure u have an infuse
Sent from my SGH-I997 using xda premium
Click to expand...
Click to collapse
Hehehe, what ROM u running?
Sent from my SAMSUNG-SGH-I997 using xda premium
qkster said:
What firmware are you running?
Click to expand...
Click to collapse
One is using the GB posted by jscott30 here, the other is the plain official Samsung GB via Kies. Mine is then UCLB3
qkster said:
Is it the same firmware on both phones?
Click to expand...
Click to collapse
No
qkster said:
What is the launcher?
Click to expand...
Click to collapse
Both stock
qkster said:
Have you tried a different modem?
Click to expand...
Click to collapse
No, thought never occurred to me that I should look at this as a solution.
qkster said:
Are you using a battery saver like juice defender?
Click to expand...
Click to collapse
Neither.
qkster said:
Are you using an ad blocker?
Click to expand...
Click to collapse
Nope
qkster said:
Are you using a specific kernel? Oc? Uv?
Click to expand...
Click to collapse
2.6.35.7-I997RUXK53-CL366622 for mine (GB rooted ROM) the other would be whatever came with the official Samsung GB release.
qkster said:
Need for specific info
Click to expand...
Click to collapse
Again this has been a recurring problem since purchase, and during this time I have had stock Froyo, rooted Froyo ROM, GB update, and for one now a the GB rooted ROM.
When the slow to unresponsiveness occurs there does not appear to be any specific cause. Prior to updating to the rooted GB I had used GO Taskmanager, and long before that some other app I long since forgot the name of. Point was that they had shown that neither CPU was excessive, or memory was used up. Both phones have data services disabled and are strictly Wifi only. There are no tasks or extra programs run in the background (though did install Connectbot today). I no longer use any Live wallpaper. After updating to the rooted GB I left the phone in that state (no software installed) for a week or so, and the problem still occured.
This occurs when calling or answering calls, but as previously posted occurs sometimes just opening the Applications menu as an example. So it is not a specific task or program that is slow or unresponsive. Earlier this evening I got a call, slide the bar across to answer and the screen just hung there for a few moments. This time it was at least not long enough that I missed the call. When the call was done I looked and there simply was nothing running on the phone. No apps, no web browser or mail, in fact I was not even connected to the wifi (I have data 3G/4G service disabled on the phone).
are you completely wiping before every flash youve done? have you tried a complete wipe and start from fresh?
ssa2204 said:
One is using the GB posted by jscott30 here, the other is the plain official Samsung GB via Kies. Mine is then UCLB3
No
Both stock
No, thought never occurred to me that I should look at this as a solution.
Neither.
Nope
2.6.35.7-I997RUXK53-CL366622 for mine (GB rooted ROM) the other would be whatever came with the official Samsung GB release.
Again this has been a recurring problem since purchase, and during this time I have had stock Froyo, rooted Froyo ROM, GB update, and for one now a the GB rooted ROM.
When the slow to unresponsiveness occurs there does not appear to be any specific cause. Prior to updating to the rooted GB I had used GO Taskmanager, and long before that some other app I long since forgot the name of. Point was that they had shown that neither CPU was excessive, or memory was used up. Both phones have data services disabled and are strictly Wifi only. There are no tasks or extra programs run in the background (though did install Connectbot today). I no longer use any Live wallpaper. After updating to the rooted GB I left the phone in that state (no software installed) for a week or so, and the problem still occured.
This occurs when calling or answering calls, but as previously posted occurs sometimes just opening the Applications menu as an example. So it is not a specific task or program that is slow or unresponsive. Earlier this evening I got a call, slide the bar across to answer and the screen just hung there for a few moments. This time it was at least not long enough that I missed the call. When the call was done I looked and there simply was nothing running on the phone. No apps, no web browser or mail, in fact I was not even connected to the wifi (I have data 3G/4G service disabled on the phone).
Click to expand...
Click to collapse
Task manager is NOT the best app to tell you what is running in the background.
Maps and other location apps may not be listed but will consume resourse that can be the cause of your lag.
The fact that stopping wallpaper or live wall paper off alleviate the condition may suggest that the phone is running at max capacity. Steps to reduce the load improves it. Live wp, facebook, maps, stock email and other device manager from stock att was one of the first @#$% I took out on any rom I run.
Having a large amount of apps installed can also cause this lag. The OS may only be able to handle so many.
Have a poor signal at the time of the call may also be an issue, especially if both of your phones have this issue occasionally but not consistently.
Lock screen can also be a factor. Some sleep setting may also cause the phone to wake up poorly. I get around this by turning off my lock screen. On the call settings, you can also change the answering options so that it will override others and make it easy to answer.
On any firmware - stock or modded, after you have the phone running for an extended period of time without a reboot, you may start to see some lags. This may be across all devices. You may need to reboot it occasionally or boot into recovery and wipe the cache.
These issues may or not go away once you have a device with more power or resources..ex: dual or quad core, 1gb or 2gb ram etc..my guess is when a device has more power, programmers will come up with more resourse intensive apps that may hinder the phone as well.
Lastly, pay attention to your battery meter. As the power dips below 30%, there are steps taken by the OS to conserve the battery. This may give you lags as well..possibly one of the reason why it seems random also.
If you wanted to test out the lag issue due to background apps, go to settings/account and sync. turn off background data. You will retain the (radio) phone and text but there will be no email/facebook, weather, widgets/market/amazon etc updates unless you manually update them. If this runs smoothly but lags when you turn it back on, you can start the process of narrowing down your culprit.
gl