yashsingh1/xdaforums huggingface dataset:
[Galaxy Ace II Q&A, Help & Troubleshooting] arroyo:
@veaceslav

Please do not be rude for me, because I am not rude for you. We are discussing here, not fighting each other.

I am aware what is the difference between RAM and ROM and how operating system works.

I do not argue that Mali needs some RAM... that is true and that is why we see 629MB and not 768MB.

"RAM do a lot of writes, as I told you before, eMMC is bad with writes, and also 200 IOPs are pathetic." - yes and because of this RAM performance on Ace 2 is rather pathetic comparing to other middle-end devices.

The fact are (I may be wrong, please point me errors if you have found any documents, sources):

i8160 uses 4GB sdin5c2 chip as emmc memory (you can buy already programmed chips for Ace2)

sdin5c2 are MLC based so they are not as durable and not as fast as SLC

calculating overall memory in Ace2 you are getting near 4GB value

RAM benchmarks and I/O results are very slow for ACE 2 in comparation to other devices

Samsung documentation is not clear whetherit has additional RAM chip or not. There is nothing like this on PCB

NovaThor U8500 does not have RAM chip inside

I would also love to see that Samsung made things properly and not used emmc for RAM. But I did not found a proof for this. Thats all.
[Galaxy Ace II Q&A, Help & Troubleshooting] Dr01nE:
I have stated that it might be impossible to increase RAM but I also disagree that RAM is "part" of internal memory (4GB)

/dev/ 312MB

/cache/ 301MB

/preload/ 314MB

/data/ 1228MB

/sdcard/1128MB

/system/ 602MB

/efs/ 9.83MB

/modemfs/ 15.7MB

TOTAL: 3 910.53 MB

Left: 185.47 MB

Although a 4GB storage device will not really have exactly 4096 MB. Which means the 185MB value can still be reduced.

I don't think 768MB of RAM can still be squeezed.
[Galaxy Ace II Q&A, Help & Troubleshooting] Jamielawther:
So I've done a little research. Using a dis-assembly image available at the Sweet Apps blog for replacing the digitizer http://www.sweet-apps.net/2012/10/15/changing-the-digitizer-front-or-touch-panel-on-a-samsung-galaxy-ace-2-nfc-model-i8160/ I searched for all the readable chip names and explained their basic functions on the image (link below).

http://img268.imageshack.us/img268/7277/identifiablechips.jpg

(Sorry about the large image!)

Anyway, from the photo you can see that there IS RAM on our board. It is NOT on the 4GB storage (Possibly the SanDisk chip above the word "Chips:") From researching the RAM chip, I have discovered another forum which is related to the I8190 http://forum.gsmhosting.com/vbb/archive/t-1588547.html So this may indeed be a 1GB original chip but Samsung, have restricted it, like the CPU. I highly doubt that a .pit file can change this, the amount is most likely hard coded. (ps. I take no responsibility if you try changing the .pit file to 1GB ram)

Hopefully this answers some questions.

---

Side note: The reason for confusion seems to be from the repair guides, where no RAM chip is shown. This may be because they do not expect the chip to be needing repaired - RAM is generally reliable and tends to outlast most parts in a computer (Computer =/= Phone I know but the components are similar ;) )
[Galaxy Ace II Q&A, Help & Troubleshooting] veaceslav:
@arroyo, I didn't say that you are stupid or something like this.

But you point of view doesn't go along with a lot of computer design concepts.

I know that ram score is low, but it's only 7-8 times slower than top level device.

On top devices they use some tricks like dual-channel and so on.

If they used emmc as ram it should be minimum 100 times slower.

5-6 times can be achieved by using lower clock dram. Also s 3 mini's 10% is because of increased clock speed that also increase ram frequency.

I read specifications of your emmc. Its only able of 15Mb/s read and 10Mb/s write. Its like a usual SD card and nothing more.

Another one was volatile and non-volatile plus security reason for ram to be volatile.

And U8500 do have a bus for LDDR2.

Sent from my GT-I8160
[Galaxy Ace II Q&A, Help & Troubleshooting] arroyo:
@ Jamielawther

That is one of the best teardowns of i8160. Excellend find!

@veaceslav

This is the reason I advice anyone to buy class 10 or even UHS SD card. When you do vold.fstab trick, the device works much better in terms of loading big games and other stuff. Also doing SWAP on fast card brings measurable gain.

SIII mini gets 1050-1100 antutu RAM points and Ace 2 800-900. I think its not related to U8500 clock since i9070 have the same RAM result as i8160. Unfortunately I do not have an access to SIII Mini to test it with antutu. SIII Mini with max clock set at 800MHz could solve question regarding NovaThor U8500 clock and RAM performance.
[Galaxy Ace II Q&A, Help & Troubleshooting] KingDani1997:
That means if we edit something in PIT or Kernel we could get 1GB RAM an maybe 800 MB usable RAM? Or did I get something wrong?
[Galaxy Ace II Q&A, Help & Troubleshooting] Jamielawther:
The only one I could find! I was going to do it myself, then I found this one so I decided to keep my warranty ;)

I don't honestly know, a starting point would be to compare the stock kernel and .PIT files of i8160 and i8190. I don't know much about Kernels or .PIT files - I'm more used to only flashing .img files or .zip's ;) The .PIT file will be different because the i8190 has 8/16GB NAND though. And one more thing, I'm not responsible for anything :)
[Galaxy Ace II Q&A, Help & Troubleshooting] Szaby59:
Here is a picture from the partition table of ace2 (GB+JB).

There is no space left for ram on the emmc module, so the part list is wrong.

Also you can see there is a samsung chip on the pcb (probably ram), but the interesting thing is that a single chip 768 MB module is very unusual (but possible), so _maybe_ it's a 1 GB module and the ammount of ram can be increased modifying something.

Unfortunately i can't find any info about the chip.
[Galaxy Ace II Q&A, Help & Troubleshooting] Jamielawther:
Would you be able to do a comparison between the i8160 and i8190 PIT files? I've sent you a PM with the standard i8190 PIT file. Not uploaded it because someone is almost positively going to flash it. Thanks!
[Galaxy Ace II Q&A, Help & Troubleshooting] Alucai Vivorvel:
Huh, so you say not having LDDR2 chips is common on Samsung devices?

And people laugh when I say my phone doesn't have any physical RAM.
[Galaxy Ace II Q&A, Help & Troubleshooting] KingDani1997:
CPU Identifyer shows 1,2 GHz at Clock Speed......
[Galaxy Ace II Q&A, Help & Troubleshooting] Rasheed96:
Read it again, it says that it's 1ghz and the maximum is 1.2 ghz.

At the top it says 800 x 2 as ace 2 is underclocked.
[Galaxy Ace II Q&A, Help & Troubleshooting] Dr01nE:
You don't get it. He meant that 1.2 is max as opposed to 1 (S Advance) and maybe he's hoping to overclock it to 1.2
[Galaxy Ace II Q&A, Help & Troubleshooting] avithohol:
Ok this is the name of the chip k4p6g304eb-agc1 and address of Chinese reseller, someone with better Chinese maybe will ask them if they know of 768 mb ram chips or there are only 1 gb versions in production.
[Galaxy Ace II Q&A, Help & Troubleshooting] veaceslav:
Finally someone cleared up this issue :)

Even if we have 1gb it's locked for good :)

Ram do have data stored into spd, and to find a spd writer chipset it's hard for computers and almost impossible for something embedded.

Please give up the idea of increasing the ram :)

Sent from my GT-I8160
[Galaxy Ace II Q&A, Help & Troubleshooting] Rasheed96:
What about adding some of it to the gpu
[Galaxy Ace II Q&A, Help & Troubleshooting] Jamielawther:
If you read the post above - specifically the following line "Ram do have data stored into spd, and to find a spd writer chipset it's hard for computers and almost impossible for something embedded." You would realise that it is almost impossible to do anything with the amount of RAM. Sorry.

---

Besides, why would you need 1GB of RAM? More a need if anything, I find 768/624mb to be sufficient on MB4 with no major slow downs unless I use the Facebook app or video player but this is pre release so it's acceptable and hopefully will be fixed in the official builds.
[Galaxy Ace II Q&A, Help & Troubleshooting] Rasheed96:
Yeah but 300mb of it is wasted on android , touchwiz and other stuff.. :D
[Galaxy Ace II Q&A, Help & Troubleshooting] Jamielawther:
I wouldn't say wasted, I mean you do want a functional phone? As it goes, the less free ram the better! haha.
[Galaxy Ace II Q&A, Help & Troubleshooting] xXfreshXx:
Yes this is no windows system. Free ram is useless ram. If you want to have multi tasking, keep your hands away from task killers. Android do this for you.
[Galaxy Ace II Q&A, Help & Troubleshooting] Jamielawther:
Exactly! :)
[Galaxy Ace II Q&A, Help & Troubleshooting] fauzanskywalker:
so ace 2 is underclocked? ace 2 has a same spec with s adv but why ace 2 clocked at 800mhz? is there any way to clocked it to 1ghz?

sorry for dumb question, i didn't catch anything bout this
[Galaxy Ace II Q&A, Help & Troubleshooting] pijen:
If ST-Ericsson release source for our chipset, yes if someone develop a new kernel for us with overclock support
[Galaxy Ace II Q&A, Help & Troubleshooting] fauzanskywalker:
so the problem is source from the STE? and why the STE not release the source? or because the ste going to bankrupt?
[Galaxy Ace II Q&A, Help & Troubleshooting] izap:
From what I know cooperation with STE is problematic...

Getting detailed documentation, forcing them to fix issues on their end etc. is hard to say the least.

That's why Samsung in few upcoming mid/ devices will be using Qualcomm chips (like snapdragon 300 or dual cores (same as in Galaxy Express, don't remember name of that chip) instead of STE.

Similar Samsung made only one phone for Europe market on Marvel MG2 (Galaxy XCover) because they cant into proper performance and GSM/WCDMA support.

Meh, the stories I could tell but cant :)
[Galaxy Ace II Q&A, Help & Troubleshooting] Rasheed96:
Why do most of Qualcomm chips comes with adreno Gpus ?
[Galaxy Ace II Q&A, Help & Troubleshooting] orangpelupa:
because Adreno is owned by qualcom

Actually it was Radeon from ATi, but then Qualcom buy it and rename it to Adreno.
[Galaxy Ace II Q&A, Help & Troubleshooting] Rasheed96:
Which is better, adreno 200 or Mali400mp
[Galaxy Ace II Q&A, Help & Troubleshooting] KingDani1997:
Mali400 is much better
[Galaxy Ace II Q&A, Help & Troubleshooting] mojito0:
Adreno 200 and 205 are pretty outdated in my opinion, I have rejected many good phones out there (especially some HTCs I liked) because of the Adreno 205
[Galaxy Ace II Q&A, Help & Troubleshooting] izap:
True, new Snapdragons (200/300/400/600/800) are using Adreno 3XX graphic. Those are better than Mali400 single core from NovaThor.
[Galaxy Ace II Q&A, Help & Troubleshooting] michal89chz:
NO.

Snapdragon 200 have adreno 203 and this one is slower than adreno 205 and adreno 205 is much slower than our mali400mp1 but have beter optimization from game dev. Our mali400mp1 is sometime recognized like mali400 from S2 and this is reason why some gameloft games (simple: dark knight) have lags. We have in this game full graphics details , adreno 205 - NO
[Galaxy Ace II Q&A, Help & Troubleshooting] Rasheed96:
And the details makes us lag while adreno runs games smoother.:D
[Galaxy Ace II Q&A, Help & Troubleshooting] michal89chz:
Yes. But in some games you can chage it and than is ok. Check Mass Effect: On my Se Live with Oc to 1.8GHz some times have lags (...) but on stock ace 2 is 40fps+ with any lags, any. But you can edit build.prop to S2 and you can get in this games better graphics ( blur, mipmaping etc...) This work in both sides. ( we can increse, decrese graphics with build.prop help but in not all games)
[Galaxy Ace II Q&A, Help & Troubleshooting] fauzanskywalker:
is the xperia u and p has same processor, gpu and chipset with ace 2? because i found the source of overclocking kernel xperia u? or both of them are different
[Galaxy Ace II Q&A, Help & Troubleshooting] Rasheed96:
Yeah I seen it once and I think it's fake.

And yes it's the same chipset.
[Galaxy Ace II Q&A, Help & Troubleshooting] Fzee:
Get this.It works like a charm.

Choose the option for more free ram.And remember to use 'kill apps' for that extra boost.I have reached up to 335mb of free ram :D
[Galaxy Ace II Q&A, Help & Troubleshooting] Joshuanz:
Free Ram is wasted ram, but that's for multitasking. In heavy gaming, more ram is a good thing isn't it?
[Galaxy Ace II Q&A, Help & Troubleshooting] fifo171:
Android OS frees the RAM when it needs it. It will kill some background apps if there's not enough RAM for the app/game. IMHO free RAM is always wasted RAM. ;)
[Galaxy Ace II Q&A, Help & Troubleshooting] michal89chz:
Useless. Free ram - wasted ram. Clean ram only before play hevy graphics games.
[Galaxy Ace II Q&A, Help & Troubleshooting] Joshuanz:
So it's not useless if you need to clear it before playing graphically demanding games. And I know that from personal experience, N.O.V.A 3 crashes if I don't clear ram before starting it.
[Galaxy Ace II Q&A, Help & Troubleshooting] michal_ag:
Italian Rom with deleted couple apps ;) .

Wysyłane z mojego GT-I8160 za pomocą Tapatalk 2
[Galaxy Ace II Q&A, Help & Troubleshooting] psychoo83:
When android is killing some apps to free RAM for other processes the phone is lagging a bit.

If it doesn't have to kill a task in order to free memory there will be runtime improvement.

I verified this when i had MC8 stright from GB and because i had only ~40MB free RAM the phone was lagging alot.

Same happens now if i let a bunch of apps hog the RAM and have under 100MB free.

From this experience i do not agree with the statement that "free ram is wasted ram"

This statement applies only if you don't plan on opening am app that was not allready in memory.
[Galaxy Ace II Q&A, Help & Troubleshooting] michal89chz:
I have uninstaled ~100apk with titanium backup and v1.0 Italian job is very very fast.No problems.
[Galaxy Ace II Q&A, Help & Troubleshooting] KingDani1997:
I think now I understand the wired thing with RAM: Our phone has about 760 mb ram and 550 are usable. In leaked firmwares samsung tried to increase the ram through storage from emmc. That is why the ram got increased only with pit file. If you compare the benchmarks from xxmb8 and the i8160p jelly bean firmware you can see tht the i8160p version has a higher score in ram, even with a smaller amount of ram. In xxmb8 there are a lot of freezes, thats because of the ram taken from emmc which is very slow.

For developement that means: Ram can be increased by editing the pit file, but this emmc-ram is much slower than the real ram.
[Galaxy Ace II Q&A, Help & Troubleshooting] Rox:
I think that we will get better JB performance with 550 mb RAM .

We need GB pit file and found some testers to try that
[Galaxy Ace II Q&A, Help & Troubleshooting] KingDani1997:
I will try to increase ram throug a edited pit fileand decreasing the emmc partition, than we will see if an higher amount of slow ram is useful.

Can someone give me the link for pit magic and give me the partition tables of xxmb8, any gb firmware and the new i8160p firmware and xxmb2 or say me how to get the sizes?
[Galaxy Ace II Q&A, Help & Troubleshooting] judas1977:
You cannot use one memory chip for various memory.
[Galaxy Ace II Q&A, Help & Troubleshooting] KingDani1997:
Go a page back. There I explained it
[Galaxy Ace II Q&A, Help & Troubleshooting] judas1977:
It is just your theory, or you do hava a proof???
[Galaxy Ace II Q&A, Help & Troubleshooting] KingDani1997:
No, but i will try it, but im on vacation with slow inet, but if i have time tomorrow i will try it
[Galaxy Ace II Q&A, Help & Troubleshooting] bomikar:
What about SWAP?
[Galaxy Ace II Q&A, Help & Troubleshooting] judas1977:
swap is not supported by stock kernel... and i think its too risky to use that emmc chip for swap.
[Galaxy Ace II Q&A, Help & Troubleshooting] bomikar:
But what about custom kernel like D-Kernel and SD card for swap file/partition?
[Galaxy Ace II Q&A, Help & Troubleshooting] KingDani1997:
Can someone give me a link for the xxmb2 or xxmb4 PIT?
[Galaxy Ace II Q&A, Help & Troubleshooting] Szaby59:
The extra memory in MB2/4 is certainly not from the emmc module or because of the pit file.

We have an mmcblk0 with 3,68 GB capacity, and only 10 MB space left (unpartitioned), also the phone would be MUCH slower.

I explained (also theory but it's 100% sure PIT file has nothing to do with extra RAM) in the other thread: link
[Galaxy Ace II Q&A, Help & Troubleshooting] judas1977:
It depends on bootloader's config, different because of flashing method I think.

Wysyłane z mojego GT-I8160 za pomocą Tapatalk 2
[Galaxy Ace II Q&A, Help & Troubleshooting] veaceslav:
Did you check if German ME1 have have memory allocated for Mali?
[Galaxy Ace II Q&A, Help & Troubleshooting] Szaby59:
WIth ME1 there is no bootloader included, it's designed to use the original GB.
[Galaxy Ace II Q&A, Help & Troubleshooting] Rox:
Can somebody try to flash GB bootloader, i tgink we will got better performance , like other users reported

Sent from my GT-I8160
[Galaxy Ace II Q&A, Help & Troubleshooting] Szaby59:
If you upgrade from GB and not flashed JB MB2/4 you will have the original GB bootlader.

Just follow the "go back to GB" tutorial and after that flash MC8/ME1.
[Galaxy Ace II Q&A, Help & Troubleshooting] Rox:
i will wait new firmware version, i am on mb4 now because 3g isn't working on MC8 for me
[Galaxy Ace II Q&A, Help & Troubleshooting] KingDani1997:
Can someone give me xxmb4/2 pit?
[Galaxy Ace II Q&A, Help & Troubleshooting] gogoo88:
here is mb2 pit

http://d-h.st/bBh
[Galaxy Ace II Q&A, Help & Troubleshooting] Moonly:
Hi, is there a .pit file from a Gingerbread ROM for the I-8160P version ? I'm searching one to flash back a phone from JB MC8 to GB stock (and then flash to official ME1 ROM for the I-8160P).
[Galaxy Ace II Q&A, Help & Troubleshooting] fifo171:
@ everybody with I8160P running German ME1:

Has anybody tried to flash spanish ME1? I downloaded it and it contains normal.bin.md5 (new bootloader?), so it could increase the RAM to 624 MB. I haven't flashed it since I don't have time for now, but I will try to flash it over my german MB1 in a hour or two. :)

EDIT: So I flashed it and... now there's just 482 MB of RAM. :eek:
[Galaxy Ace II Q&A, Help & Troubleshooting] xbaker:
Hey guys.

I'm going to flash again portugal MC8. Which option is better for performance, to have 555MB of ram, or 624?

I ask about that, because i read previous post and someone say something about, that the 624 MB of ram is isn't good choice, or smth.
[Galaxy Ace II Q&A, Help & Troubleshooting] Shadowcareful:
482mb really thats weird maybe u could try flash back to gb an than to spanish me 1
[Galaxy Ace II Q&A, Help & Troubleshooting] fifo171:
Gonna try it, but first I have to find a GB firmware that contains bootloader, too.
[Galaxy Ace II Q&A, Help & Troubleshooting] Moonly:
That's the real problem here, I'm looking for a GB firmware with bootloader too.
[Galaxy Ace II Q&A, Help & Troubleshooting] bezaleel:
is there any kernel that support swap?

my RAM is too small. any idea? how to expand it? my kernel doesn't support swap.:rolleyes:

Galaxy ace II jelly bean
[Galaxy Ace II Q&A, Help & Troubleshooting] fauuzzan:
Can I increase the Kryllios RAM?
[Galaxy Ace II Q&A, Help & Troubleshooting] judas1977:
What kind of memory is Kryllios RAM?
[Galaxy Ace II Q&A, Help & Troubleshooting] squall_0806:
I have this experience before, I flashed Portugal JB directly from my GB then got a 482 RAM. I reverted back to GB, returned my ram to 624. With this I flashed xxmb4 and yielded 624 ram. I didn't find much difference in using 482 ram versus 624 ram. I guess the only difference is that in 482, my ram is usually around 60% to 75% full. :D
[Galaxy Ace II Q&A, Help & Troubleshooting] judas1977:
You got 624MB ON GINGERBREAD? You are the only one:)

Wysyłane z mojego GT-I8160 za pomocą Tapatalk 2
[Galaxy Ace II Q&A, Help & Troubleshooting] squall_0806:
Yeah man, idk but firstly from stock GB, I flashed portugal then after long, i returned GB using russian rom. that's it..idk wth happened.
[Galaxy Ace II Q&A, Help & Troubleshooting] j3poii:
624 on GB? Screen shot please.

The title says it all. Please post a screen shot. I reverted back to GB and I only have 555 mb RAM. You were the ony one who claimed this much RAM on GB.

OT: I prefer GB over any JB roms because of lagging and hangs whenever I played youtube videos and movies when I was on JB. GB is always smooth, stock. What about you?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] trh1341:
Is there a reasin no one has ported a galaxy s4 rom? The system dump is out..

I was thinking of trying to port it myself since I ported a rom when I used the HTC Inspire 4g
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mrhaley30705:
Are there any custom roms to port?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] cwhitney24:
port away

port away

http://www.quickmeme.com/meme/3tnlvb/
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] hednik:
Completely different hardware and that's for the intetnational one as well. We will see a quad core variant. It would be like saying some has to port a galaxy s3 ROM the the s2 or skyrocket. You can port features but not the whole ROM.

Maybe when the north american system dump is released it will be possible but as of now it is going to be extremely hard.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] trh1341:
Thank you. I think I may try but wont try to hard since its unlikely:)
[HTC Sensation] ashkan-khatar:
BOBClock 3d, if you could make up a nice combination, it'll be very elegant. :)

That pretty "Thanks" button's waiting for U, in case I helped :P

∫εทт ƒя๑๓ α ∫нαкεท บρ нтς ∫εทรαтï๑ท жξ บรïทg... พнαтενεя! Dïƒƒεяร?!
[HTC Sensation] Alsager:
Fancy widget?? Try it. It is free.
[HTC Sensation] den10:
If you can afford it, Beautiful Widgets Pro has some lovely ones
[Verizon Samsung Galaxy S III] titanshadow:
Anyone else running CM 10.1 and the Plex for PlexPass app having issues?

Thanks. :)
[Vibrant Q&A, Help & Troubleshooting] FunnyMan8:
Is there a liquid smooth ROM for Samsung vibrant?
[Vibrant Q&A, Help & Troubleshooting] cannondaleV2000:
Not yet but there might be soon:D;)
[Vibrant Q&A, Help & Troubleshooting] skinzy98:
cannondale i was supposed to tell him that! ive already asked for permissions to port it!:laugh::highfive:
[Vibrant Q&A, Help & Troubleshooting] cannondaleV2000:
sorry

woops:)
[Vibrant Q&A, Help & Troubleshooting] skinzy98:
If you still want it links can be given. Cough cough
[Android Q&A, Help & Troubleshooting] mrhillier:
I have an HTC Desire GSM running MildWild CM 8.0.

Until recently I had no problems, everything was working fine, but then when messing around with my homescreen and launcher (nothing major, just changing layouts) I realised my status bar had gone and couldn't find any way to get it back.

Here's the strange part though - I'd recently taken a nandroid backup, when I know the status bar was there, so I restored to that and the status bar was still missing.

Then, as a last resort, I backed up all my apps with Titanium Backup, wiped all partitions and reinstalled the ROM. The status bar is still missing.

I figure it must be to do with something on my sdcard since everything else is fresh, but for the life of me can't figure it out.

Any ideas?
[Android Q&A, Help & Troubleshooting] replicant101:
Have you tried a different rom then gone back to your current one?

It sounds like the SystemUI.apk in your /system/app partition is corrupt.
[Android Q&A, Help & Troubleshooting] mrhillier:
That worked a treat, thanks very much for your swift response!
[Android Q&A, Help & Troubleshooting] mrdickie:
thanks

Thanks for that, you helped me too. i had the same problem:good: