Iview 420TPC-TW Rom an bootloader support help - Android General

I everyone,
A wile back I bought an IVIEW 420TPC-WT and its a nice little device for tinkering but its slow and unstable out of the box. I was able to install Nova launcher and no-frills cpu on it and it ran better but the stock rom is terrible and the device runs out of its 512 Mb ram quickly. The apps crash and the devices freezes. Even my HTC Incredible runs better than this.
Does anyone know how to make a good working and light weight rom with possibly a custom boot loader for it?
There is already root that works great. Apps are starting to not run on it anymore due to its limitations. Its fast but the stock rom does not handle the hardware correctly.
I don't mind testing anything if it helps others with similar questions.

Related

Is this tablet really this slow and buggy? Worth rooting?

I just bought this device as a toy and a test as a computer tablet. I found it to be slow and buggy. I do notice that in browsing heavy pages like the real facebook page it IS faster than my Galaxy Note 1 but in almost everything else, the Note is faster and snappier. I have disabled lots of apps, resett it, no change. So my question, I guess this one is really worth rooting and installing a good rom Im used to the Cyanogen to my phones, is Cyanogen working good for this tablet?
Im still marveled by the quality of the screen, I dont think I ever have seen such a good screen! If I just now could get it working somewhat near as good as my Note 1 I will be a happy panda
Thanx in advance peeps
My experience is that it is NOT slow and buggy.
I could compare it with an iPad3 last week and I think they are very close.
You can't compare it with a note because due to the much higher resolution the gpu has to do so much more computing. That is why the nexus7 is faster than the tf700 due to it's smaller screen AND resolution
hobs0n said:
I just bought this device as a toy and a test as a computer tablet. I found it to be slow and buggy. I do notice that in browsing heavy pages like the real facebook page it IS faster than my Galaxy Note 1 but in almost everything else, the Note is faster and snappier. I have disabled lots of apps, resett it, no change. So my question, I guess this one is really worth rooting and installing a good rom Im used to the Cyanogen to my phones, is Cyanogen working good for this tablet?
Im still marveled by the quality of the screen, I dont think I ever have seen such a good screen! If I just now could get it working somewhat near as good as my Note 1 I will be a happy panda
Thanx in advance peeps
Click to expand...
Click to collapse
I'm on stock rom with browser2ram and force2gpu enabled. My table is very fast. Just remember before you flash a new rom, just do factory reset(data wipe 3 times). Also root is good (allow you to install rooted app like Titinium backup, SetcPU etc..), but don't unlock unless absolutely necessary (void your warranty), or you have time or like to play with custom rom.
Ok, sounds like I will root it then and try to tweak it, Im not satisfied with the speed with it sofar. Its seems stable now after I resetted it, before the reset, it crasched 2-10 times a day. My idea was that since the GPU and CPU is older in the Note, The Tegra 3 would be able to handle the FullHD resolution but it doesnt seem to .. I definatly want a ROM without the garbage crap
I plan to use it to write alot on, can you recommend a good office app? Or a browser that google docs work good with
Is games running good for you?? The new demanding ones I tried before resetting was really slow and laggy.
Thanx for the replys, I hope I get this baby running smoother
hobs0n said:
Ok, sounds like I will root it then and try to tweak it, Im not satisfied with the speed with it sofar. Its seems stable now after I resetted it, before the reset, it crasched 2-10 times a day. My idea was that since the GPU and CPU is older in the Note, The Tegra 3 would be able to handle the FullHD resolution but it doesnt seem to .. I definatly want a ROM without the garbage crap
I plan to use it to write alot on, can you recommend a good office app? Or a browser that google docs work good with
Is games running good for you?? The new demanding ones I tried before resetting was really slow and laggy.
Thanx for the replys, I hope I get this baby running smoother
Click to expand...
Click to collapse
Yes, all games, videos, pictures, and documents and apps are function normally. There are 3 most popular office apps:
1. Documents to go (this can view google docs also. Paid version only)
2. Kingsoft office
3. Polaris office (currently polaris has a bug with fonts).
My stock browser can view google docs fine. I think stock browser is the best in my opinion (have tried boat, chrome, mozilla etc...)
hobs0n said:
My idea was that since the GPU and CPU is older in the Note, The Tegra 3 would be able to handle the FullHD resolution but it doesnt seem to .. I definatly want a ROM without the garbage crap
Click to expand...
Click to collapse
The Infinity's performance is not CPU bound and is not due to the higher res. It's I/O limited. The CPU is plenty fast enough. As soon as the memory config requires the system to start hitting the /sdcard memory, the system will be subject to random stuttering/pausing because the sdcard memory is the cheapest, slowest, crappiest flash RAM ASUS could find.
This is why stuff like browser2ram is seen as a huge boost for people that do a lot of browsing and it is also why the stuttering varies from user to user/session to session since the RAM situation in the system varies from config to config and moment to moment during use. Some users who's config has a lot of free DRAM and do not frequently use stuff that hits the sdcard partition hard, see almost no performance issues with the tablet.
zenaxe said:
The Infinity's performance is not CPU bound and is not due to the higher res. It's I/O limited. The CPU is plenty fast enough. As soon as the memory config requires the system to start hitting the /sdcard memory, the system will be subject to random stuttering/pausing because the sdcard memory is the cheapest, slowest, crappiest flash RAM ASUS could find.
This is why stuff like browser2ram is seen as a huge boost for people that do a lot of browsing and it is also why the stuttering varies from user to user/session to session since the RAM situation in the system varies from config to config and moment to moment during use. Some users who's config has a lot of free DRAM and do not frequently use stuff that hits the sdcard partition hard, see almost no performance issues with the tablet.
Click to expand...
Click to collapse
Well,
I guess I'm going to do the downgrade to ICS .30\root\then try the rootkreeper deal back to Belly Jean.
I really don't want to go thru all this, but if I want to keep chipping away trying to find a better Android experience then so be it.
Pain in the ass...
Thanx for the info! That was my biggest thoughts about the Infinity, "is the RAM enough?" and it isnt but then Ill just have to multitask less and try to tweak it. And perhaps dont install multipicture wallpaper.. but thats one of the things that I love about my Note
buhoitr: thanx for the suggestions, Ill try them and see
What rom would you suggest for getting the most out of the Infinity?
zenaxe said:
The Infinity's performance is not CPU bound and is not due to the higher res. It's I/O limited. The CPU is plenty fast enough. As soon as the memory config requires the system to start hitting the /sdcard memory, the system will be subject to random stuttering/pausing because the sdcard memory is the cheapest, slowest, crappiest flash RAM ASUS could find.
This is why stuff like browser2ram is seen as a huge boost for people that do a lot of browsing and it is also why the stuttering varies from user to user/session to session since the RAM situation in the system varies from config to config and moment to moment during use. Some users who's config has a lot of free DRAM and do not frequently use stuff that hits the sdcard partition hard, see almost no performance issues with the tablet.
Click to expand...
Click to collapse
hobs0n said:
I just bought this device as a toy and a test as a computer tablet. I found it to be slow and buggy. I do notice that in browsing heavy pages like the real facebook page it IS faster than my Galaxy Note 1 but in almost everything else, the Note is faster and snappier. I have disabled lots of apps, resett it, no change. So my question, I guess this one is really worth rooting and installing a good rom Im used to the Cyanogen to my phones, is Cyanogen working good for this tablet?
Im still marveled by the quality of the screen, I dont think I ever have seen such a good screen! If I just now could get it working somewhat near as good as my Note 1 I will be a happy panda
Thanx in advance peeps
Click to expand...
Click to collapse
Hmmm, I've found mine to be quick and virtually bug-free, but then again I didn't buy it as a toy.
A little tweaking and I wouldn't call it slow. Even stock its a solid piece of equipment.
Apply data2sd mod built for CleanROM 2 after installing the ROM. You'll need a fast sd card.
Research the threads. The blob for data2sd for that ROM was just posted today.
look at my I/O!
Sent from my ASUS Transformer Pad TF700T using xda app-developers
I own both the Infinity and the Acer a700 and after the a700 got JB earlier today, I will say that the Infinity lags more than the a700 (and I was very happy with the Infinity). Colour me shocked.
The only time I really ever experience any lag or sluggishness is when browsing. I will be rooting once there is a method discovered for Jelly Bean on the Infinity. I'd really like to give browser2ram a shot. I've heard it does wonders for browsing.
Sent from my ASUS Transformer Pad TF700T
Better than ever
Before i say thing, I will list the important things about my tablet - C7 model, Has been repaired for speaker issues & Jelly bean 4.1.1. I'd say TF700T is a powerful device, It lacks the software for it. I use to notice quiet a bit of lag on ICS but after upgraded to Jelly bean, It's faster than ever! I would even compare it to iPad 3:laugh: I'm running Stock Jelly bean with a bit of removing apps here and there.
I Don't know why everyone is having problems with such a decent device.
ExjeetzZ said:
Before i say thing, I will list the important things about my tablet - C7 model, Has been repaired for speaker issues & Jelly bean 4.1.1. I'd say TF700T is a powerful device, It lacks the software for it. I use to notice quiet a bit of lag on ICS but after upgraded to Jelly bean, It's faster than ever! I would even compare it to iPad 3:laugh: I'm running Stock Jelly bean with a bit of removing apps here and there.
I Don't know why everyone is having problems with such a decent device.
Click to expand...
Click to collapse
I you guys would read the Development section (read the newer threads, please) you would see that CleanROM2.2 has pretty much completely eliminated the lag and i/o issues. It's reason enough to root and unlock. This tablet is a beast when it is allowed to begin to reach its full potential.
okantomi said:
I you guys would read the Development section (read the newer threads, please) you would see that CleanROM2.2 has pretty much completely eliminated the lag and i/o issues. It's reason enough to root and unlock. This tablet is a beast when it is allowed to begin to reach its full potential.
Click to expand...
Click to collapse
Im rooted and installed CleanRom2.2 this morning and it is indeed faster and smoother i will try the tweaking you guys suggested later. It still lagged when i downloaded my spotify playlists while i was downloading youtube movies tho
okantomi said:
I you guys would read the Development section (read the newer threads, please) you would see that CleanROM2.2 has pretty much completely eliminated the lag and i/o issues. It's reason enough to root and unlock. This tablet is a beast when it is allowed to begin to reach its full potential.
Click to expand...
Click to collapse
I think CleanROM 2.2 is the route I'm going to go too...that's if I can figure out how to do it without asking a bunch of dumbs**t questions.
Still reading about it in development.
I'm getting more and more disappointed with this TF700T each time I turn it on lately...
Did really dig it for a while...not anymore
Will i unlock? No...
Thats OK said:
I think CleanROM 2.2 is the route I'm going to go too...that's if I can figure out how to do it without asking a bunch of dumbs**t questions.
Still reading about it in development.
I'm getting more and more disappointed with this TF700T each time I turn it on lately...
Did really dig it for a while...not anymore
Click to expand...
Click to collapse
If it was really laggy and something that i can't deal with i would unlock but since it feels flawless, I might stay. I don't give a crap about their warranty but i do care for my device (brick)
ExjeetzZ said:
I use to notice quiet a bit of lag on ICS but after upgraded to Jelly bean, It's faster than ever!
Click to expand...
Click to collapse
It's the total opposite for me. ICS was fast and virtually lag-free. The latest updates to Jellybean my Infinity lags like nobody's business. Very disappointing. Looks like root'n'rom time.
buhohitr said:
I'm on stock rom with browser2ram and force2gpu enabled.
Click to expand...
Click to collapse
What is force2gpu?
(google seems to give irrelevant results).
Thx
squigs said:
What is force2gpu?
(google seems to give irrelevant results).
Thx
Click to expand...
Click to collapse
If I may attempt an answer,
I believe that's a reference to the "force gpu rendering" in settings under developer options.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

[Q] ZTE Grand Era LTE (V9800) Rom?

Hi, i cant seem to find any thread or topic or any google search for this device, i got it super cheap witch is why i bought it. payed 100 usd with 2 year warrenty and everything is fine hardware wise but the software is not up to par.
Does a rom even exist for this device or am i out of luck?
Hi, got the same device, but haven't found any roms yet.. What you can do to make it a little bit quicker is to root it and remove all the zte bloatware and the stock launcher (i replaced it with Nova Launcher), install Chainfire 3D drivers, and tweak the kernel (kernel tuner or similar, you can set the second cpu-core to always on, change the cpu governors and tweak memory, uses more power but some of the tweaks are worth it!) check this http://forum.xda-developers.com/showthread.php?p=44035437 thread on how to root it. Sadly the only way is using a Chinese software, but its pretty easy. When your rooted u can use a program like Titanium Backup to remove the bloatware..
I could barely use the phone with the standard setup, it was sooo slow! But with all the tweaks it almost twice as fast.

Question about entropy

Hi guys, its been a while. I've seen a thread here discussing this and I would like to know more about it. I mean does it really work? I have Seeder installed on my phone set to lite mode. I couldn't seem to discern if its really working or not... is there some other way to find out if its really working? I got a phone running on stock JB 4.2.2, clocked at 1.2Ghz quad core with 1GB of ram and so far so good. Been playing games like Dead Trigger2, NBA 2K14 with no lag or whatsoever, of course there are occasional few hiccups every now and then when scrolling on the menus but nothing serious. The reason I installed Seeder is to make sure that it will still run smoothly in the long run. Any insights are greatly appreciated, thanks.
Sent from my [Root] O+ 8.15, Stock Rom using Tapa Talk

Music stutter/lag when screen is off LG Optimus P920

Hello there fellow members,
First of all, the thread's title is for SEO purposes only so if anyone else runs into the same problem with this phone and start Googling for a solution this will come up.
The issue I have is really basic, I went through all the threads but I couldn't find a trivial solution for this. So I flashed my P920 (again) with V30A (it was a nightmare with all the unbricking process and whatnot, lol) everything is fine except one thing. This is when I play music and turn off the screen it starts lagging almost immediately. I am pretty sure it's about the CPU clock speed scaled below to 200Mhz or something, but I can't figure it out how to change this.
I have downloaded Trickster Mod but there are only two options I can set; the min and the max CPU speed. I've tried other apps as well, no luck. There's no option to set the CPU frequency when the screen is off. Sure it's a good way to save battery but really annoying when it comes to playing music.
I'm not sure if it's the ROM, maybe the kernel (i'm that kind of guy who can make these things work but I have really no idea what is really going on with linux based systems)
Here are my system specs;
ICS 4.0.4
OMAP4430/XMM6260
Kernel 3.0.21
P92030a-EUR-XX
I also have TWRP recovery installed and full root access on my phone.
I appreciate if anyone of you can point me to the right direction what to do with this.
(oh, one more thing please; let me ask you a bit off-topic somehow according to this; ever since I upgraded from Froyo, somehow I feel this fantastic phone a bit slow. It's not as responsive with ICS as it used to be with Froyo, I don't know I would say it's something like when you have a fairly old PC with WinXP and it runs pretty well but once you upgrade it to Win7 it's still okay but not that "lightning fast" when it was with XP. So yeah, maybe it's the old hardware - new software case that I'm "feeling" but 2.2 was definitely better (in terms of speed) when these latest operating systems available for P920).
Just Try flashing a custom kernel!
//Sent from somewhere in your house

Q&A Android Marshmallow ROMs Is it even possible?

Hi,
after testing the "[ROM][MTC20F][GalaxyTab7.7|Plus][13Aug2016 OmniROM-6]" you find out that our GalaxyTab7.7 can cope with latest android developments when it comes to performance.
If it wasn't for the reoccuring reboots and crashes, I would say, it is perfect. And I really hate the tablet becoming a paper weight somewhere in the corner...
So what options do we have?
An outdated (insecure?) earlier android version? Are there any secure older versions available?
Tweak Marchmallow so that it doesn't reboot / crash regulary
To Tweak it we need to know what makes it reboot / crash. Is it because of low memory? Is it still some drivers having problems?
Please post ideas, how to find out what makes it reboot / crash. Is there any logs available?
@p3dboard: Do you have any memory tweaks we can try?
@daniel_hk : Thanks for getting our tablet this far!
Kind regards
Jarr3
Jarr3 said:
Hi,
after testing the "[ROM][MTC20F][GalaxyTab7.7|Plus][13Aug2016 OmniROM-6]" you find out that our GalaxyTab7.7 can cope with latest android developments when it comes to performance.
If it wasn't for the reoccuring reboots and crashes, I would say, it is perfect. And I really hate the tablet becoming a paper weight somewhere in the corner...
So what options do we have?
An outdated (insecure?) earlier android version? Are there any secure older versions available?
Tweak Marchmallow so that it doesn't reboot / crash regulary
To Tweak it we need to know what makes it reboot / crash. Is it because of low memory? Is it still some drivers having problems?
Please post ideas, how to find out what makes it reboot / crash. Is there any logs available?
@p3dboard: Do you have any memory tweaks we can try?
@daniel_hk : Thanks for getting our tablet this far!
Kind regards
Jarr3
Click to expand...
Click to collapse
The best performing Rom's so far for memory / lack of low memory freezing, are the Android 4.4.4, Kitkat rom's, not that they are to totally bug free, eg there's the Charging screen bug where it automatically powers back on after about 5 minutes of charging.
I have just tried Android 7.0 cm14 on my Galaxy S2 rom, and its quite smooth. Our Galaxy Tab 7.7 has a larger screen resolution, and so a little less memory then the s2, but a similar CPU and Ram, and it seems to work quite well on 1Gb of RAM. Hopefully when Daniel makes the Android 7.0 rom's they might get us back to the same performance as the old Android 4.4.4 rom's.
Any advice on best 4.4.4 rom? Omni 6 goes in slowmo mode to often for me. To bad no one is improving Omni6 or other roms for the tab 7.7 anymore.
Sent from my GT-P6800 using XDA-Developers Legacy app

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