[LEO] HTC HD2 576MB Ram not what is seems - HD2 Windows Mobile 6.5 ROM Development

Hi,
I've been using a cooked ROM with the 576MB RAM enabled. Clearly the total available memory increases 457.4MB.
The concerning thing is when I begin to test the memory. Presumably this extra memory means more applications can run simultaneously. However when i open multiple applications the OS will automatically close applications to conserve memory even when it has not reached the 457.4MB limit.
In previous ROMS I recall the memory would go upto about 290MB - 300MB before applications would automatically close to conserve memory. However with the extra RAM there is no change in this behaviour.
Another issue I have noticed, is when the memory reaches over 330MB, this then stops applications like YouTube and HTC Album from running (this NEVER happens on the roms without 576MB enabled). Clearly there is atleast 100MB more memory available which the HTC HD2 is not making full use of.
Can I please have your views and whether or not the 576MB is actually beneficial and not just a way of stopping other apps running when memory usage is high. Although I believe the extra memory is available, i'm not convinced certain applications can handle it correctly.

I'm using the Energy ROM with Radio 2.08, which gives you 576MB memory. I have no issues with programs losing, I have 7-8 programs open at once. Also I have noticed a noticeable speed increase with the extra RAM unlocked, and of course with the new ROM.

Abolisher2407 said:
Hi,
I've been using a cooked ROM with the 576MB RAM enabled. Clearly the total available memory increases 457.4MB.
The concerning thing is when I begin to test the memory. Presumably this extra memory means more applications can run simultaneously. However when i open multiple applications the OS will automatically close applications to conserve memory even when it has not reached the 457.4MB limit.
In previous ROMS I recall the memory would go upto about 290MB - 300MB before applications would automatically close to conserve memory. However with the extra RAM there is no change in this behaviour.
Another issue I have noticed, is when the memory reaches over 330MB, this then stops applications like YouTube and HTC Album from running (this NEVER happens on the roms without 576MB enabled). Clearly there is atleast 100MB more memory available which the HTC HD2 is not making full use of.
Can I please have your views and whether or not the 576MB is actually beneficial and not just a way of stopping other apps running when memory usage is high. Although I believe the extra memory is available, i'm not convinced certain applications can handle it correctly.
Click to expand...
Click to collapse
people want to believe in the 576 mb ram trick
truth hurts

After doing some research I have found out the following information :-
Windows Mobile 6.x is powered by Windows CE 5.2.
http://www.slideshare.net/abhisheksharma/windows-mobile-6
http://www.addlogic.se/articles/articles/windows-ce-6-memory-architecture.html
The memory architecture is divided in to 32 process slots. Each with a capacity of 32MB. However with a little testing of my own I have found that it is not possible to run more than approximately 11 applications similtaneously which equates to 28 processes running on my setup. The remaining (28 - 11) 17 processes are operating system specific processes such as the GWES.exe DLL's etc.
If you calculate the memory required for the max of 11 applications it is 352MB which explains why I never see the memory go above 300-330.
The advantage of having the extra memory (576MB) is possibly to allow the other 21 processes to run with more head room.

Abolisher, to test if the 576Mb Ram trick works, you can make the following test.
Create a 128Mo Ram disk, fill up this new storage with data (internet cache for example) and run agin your tests, you'll see that you could fill all your ram and your data on the storage will be OK.
Some tests were done to prove that the 576Mb trick was real.

Abolisher2407 said:
After doing some research I have found out the following information :-
Windows Mobile 6.x is powered by Windows CE 5.2.
http://www.slideshare.net/abhisheksharma/windows-mobile-6
http://www.addlogic.se/articles/articles/windows-ce-6-memory-architecture.html
The memory architecture is divided in to 32 process slots. Each with a capacity of 32MB. However with a little testing of my own I have found that it is not possible to run more than approximately 11 applications similtaneously which equates to 28 processes running on my setup. The remaining (28 - 11) 17 processes are operating system specific processes such as the GWES.exe DLL's etc.
If you calculate the memory required for the max of 11 applications it is 352MB which explains why I never see the memory go above 300-330.
The advantage of having the extra memory (576MB) is possibly to allow the other 21 processes to run with more head room.
Click to expand...
Click to collapse
Actually it is even more complicated with even more limitations. This article series gives you more insight into memory subsystem in WM/WM:
http://blogs.msdn.com/hegenderfer/archive/2007/08/31/slaying-the-virtual-memory-monster.aspx
pen-pen said:
Abolisher, to test if the 576Mb Ram trick works, you can make the following test.
Create a 128Mo Ram disk, fill up this new storage with data (internet cache for example) and run agin your tests, you'll see that you could fill all your ram and your data on the storage will be OK.
Some tests were done to prove that the 576Mb trick was real.
Click to expand...
Click to collapse
Does the 128MB ramdisk work? It's been told it fails above 32MB.
Some tests were done to prove that the 576Mb trick was real.
Click to expand...
Click to collapse
Well, it's real. But absolutely useless unless any real life working scenario is found.

576MB does increase performance.

djet said:
Does the 128MB ramdisk work? It's been told it fails above 32MB.
Click to expand...
Click to collapse
there is more than one ramdisk driver floating about,with different max sizes, go look in the non phone specific win mo sections.

djet said:
Well, it's real. But absolutely useless unless any real life working scenario is found.
Click to expand...
Click to collapse
well, if no real life scenorio is found for 576MB, then what is the purpose for 1024MB in TMOUS version?

chrisukhd2 said:
576MB does increase performance.
Click to expand...
Click to collapse
Hoax. Go get "1GHz hack".
noris08 said:
well, if no real life scenorio is found for 576MB, then what is the purpose for 1024MB in TMOUS version?
Click to expand...
Click to collapse
Answering this question equals finding this scenario.

djet said:
Hoax. Go get "1GHz hack".
Click to expand...
Click to collapse
The 1Ghz Hack is an hoax.
The "1Ghz driver" was the exact same file as the original one.
djet said:
noris08 said:
well, if no real life scenorio is found for 576MB, then what is the purpose for 1024MB in TMOUS version?
Click to expand...
Click to collapse
Answering this question equals finding this scenario.
Click to expand...
Click to collapse
Well, the TMOUS have 576Mb of RAM and 1024Mb of ROM, RAM and ROM are two different things.

pen-pen said:
The 1Ghz Hack is an hoax.
The "1Ghz driver" was the exact same file as the original one.
Well, the TMOUS have 576Mb of RAM and 1024Mb of ROM, RAM and ROM are two different things.
Click to expand...
Click to collapse
The mass hysteria on this subject and tons of noobs lurking for "576 RAM" effectively make this story a worthless hoax.
I know. I've misread his question regarding LEO1024, just missed the "MB" point.

i am going to clear this up once and for all
1ghz hack = fake
576mb RAM = REAL as conclusively proved by advanced testing when it was first discovered, the fact that it comes as default whena tmous rom is flashed on a EU hd2, and my own testing (i built a rom wiht a 400mb pagepool and was able to sucessfully fill the remaining 50 odd mb of ram before the system gave out)
end of story
G

I've tried to load a lot of programs to test 576mb ram. After 10min test i loaded ~20progs and: In Use 372mb ram free 86........so i think 576mb is REAL I also tried memory test program that used all ram except last 10mb....

Real life tests with documented results. Please.

Something to keep in mind if you are opening loads of apps to test the memory:
When i have Opera 10 running in the background, it sometimes stops me opening HTC albums saying there isnt enought memory when there clearly is. As soon as you close it, it opens again.
So maybe you have opera 10 running when you try to open HTC album, causing the error. Close opera 10 and see what happens

That Ram bonus would be usefull if we were using ALOT of apps simultaneosly . But never in my experience with this phone needed more ram . So If you plan on installing a long list of apps and running them all in background(just to boast) maybe more ram is required. But aside the app that eats ram to check if it is valid i do not know of anyone to have reported to reach the limit with even pro usage.
If the phone hardware recognizes the extra ram and uses it then it is there. The extra tmous radios enable the phone to use more of its hardware perhaps? Remember PCs...? Windows x86 works up to only 3 gigs of ram even if you have 16 gb of ram installed onto the motherboard. Using a higher functionality operating version in x64 mode (for dual-core proc) enables the " hidden ram " . The ram was always there but the system needed a better programing to use it . I am not much of a computer expert but i guess its not fake, only that u do not need it !

It is my personal thinks:
The fact:
- ROM that show 448 MB run smoother than ROM that show 576Mb as I fell and some tests.
The reasons may be:
- HD2 (Leo) have enough 576Mb, it is real.
- With basic ROM, the manufacturer hide some part of RAM to use it for permanent applications/programs that may support for WinMo run faster and smoother and that apps/progs do not need to start/stop usually. The hidden part could be set to priority access mode (may be). And the RAM shown for you is 448 Mb only and you could do every thing with this part of RAM.
- The ROM that hacked RAM side to be shown as 576Mb open the hidden part and make all off RAM could be used randomly by user. In that case, top necessary applications run by Windows should start and stop many times, it may make the OS be slower a little.
It is my idea.

The question is not If 576MB RAM is real (its proven to me), it's the question if there may be 1GB ROM also.. as I don't see any reason why they would do that little change if they alrdy didn't change the 576 RAM thing
The only question is.. why don't TMOUS roms unlock the (may) hidden ROM?
I guess it could some realy deep coded software thing.. not sure if thats even possible..maybe others can tell
We will see alot more clear if we can boot into linux =)
Cheers

the actual chips are different for the rom. cotulla posted the two chip model numbers. one has 576ram512rom onboard the other has 576ram1024rom.

Related

Does using high RAM have effect on speed?

Since the new official WM6.5 is using a lot of RAM, does this affect the speed of the device?
Or does it merely mean that there can't be as many apps open until it reaches critical level?
Not directly, it should not. Only if it reaches a certain level, as you said.
It's likely however that WM6.5 uses more processing power than 6.1, but I can't say for sure.
It should not affect the performance, I have been up to 80% or more and never experienced any lag issues.
Cool thanks for the replies
One of the biggest misconceptions about RAM on Windows Mobile or indeed most operating systems, is that it's a good thing to have lots of free ram available. It's not. It's a complete waste of resources. The most efficient use of RAM would be bouncing off 100% used as much as possible.
It's good to have free RAM up until you have nothing more to execute. Having more RAM ensures you never reach this limit and start swapping.
I may not use all 4GB on my PC at once, but when the next version of XXXXX game comes out, I may end up using more than I do now. The overhead ensures I don't have to go out and buy more memory to ensure reliable performance.
A little off topic, but seems like a good place to ask: Opera (using 6.1, original or TESS) often struggles rendering complex (and sometimes even simple) pages. When you scroll to a new part of the page there are delays while it redraws the new bits. When you scroll back, it has to redraw the original bits. There are annoying delays and large ugly grey areas while it does this. I often have 3-4 tabs open BTW.
The question is, can Opera be allocated more memory (since I have plenty, especially since TESS) or is it completely automatic under WM? I've poked around in the registry and there are a couple of keys for "memory allocation" and "heap allocation", or some such, under the Opera section, but they're just numbers, they don't look like Mbytes, if you see what I mean.
The slow redrawing thing feels like a memory problem, as though it's redrawing from storage cache rather than quicker RAM cache, that's why I ask.
ArtieQ said:
It should not affect the performance, I have been up to 80% or more and never experienced any lag issues.
Click to expand...
Click to collapse
I fully agree with you.
The only problem is that programs that use lots of memory will not start. In fact I can play with Xtrakt only if I disable manila, otherwise the system not have enough memory to start it.
Sorry for the bad English
im sorry but if your PC or phone whatever you like is using alot of RAM, say %90, then this is going to cause the device to slow down.
once you reach a certain limit of RAM left, it has to start using disk space as temporary RAM and as such everything becomes slower.
RAM makes it quicker ONLY when the program you want is loaded into the RAM. So in windows if you have alot of programs running in the task area, then yes these programs will run up very quickly. But try then to open up another program when your memory is briming and you will find that it will slow it up.
To have memory running at a high percentage used is bad practise. In theory its good because it means things are loaded, but its only the things that are loaded that notice the speed benifits. There needs to be a cut off point.
adamrob69 said:
im sorry but if your PC or phone whatever you like is using alot of RAM, say %90, then this is going to cause the device to slow down.
once you reach a certain limit of RAM left, it has to start using disk space as temporary RAM and as such everything becomes slower.
RAM makes it quicker ONLY when the program you want is loaded into the RAM. So in windows if you have alot of programs running in the task area, then yes these programs will run up very quickly. But try then to open up another program when your memory is briming and you will find that it will slow it up.
To have memory running at a high percentage used is bad practise. In theory its good because it means things are loaded, but its only the things that are loaded that notice the speed benifits. There needs to be a cut off point.
Click to expand...
Click to collapse
Your understanding of the OS and therefore your conclusions are wrong. Desktop Windows is a different beast to Windows Mobile. When physical RAM gets low in Windows, it swaps data out to the disk. In WM it doesn't, it asks programs to close down (then forces them if none of them do), on a least recently used basis. For this reason, in WM, you might as well have applications using free RAM since they're effectively 'cached' and ready to be called up quickly. Should you start another process that requires that RAM, then the old processes will be closed very quickly. In WM, free RAM is wasted RAM.
Hi
For this reason, in WM, you might as well have applications using free RAM since they're effectively 'cached' and ready to be called up quickly. Should you start another process that requires that RAM, then the old processes will be closed very quickly. In WM, free RAM is wasted RAM.
Click to expand...
Click to collapse
Exactly Which is why having the HTC task bar shut down applications on clicking the cross is a complete waste of time. Windows Mobile is designed to leave applications loaded even when you close them, that way they are ready immediately when you want them again. This saves times and also power.
As already stated Windows Mobile will close applications automatically if required to free up some space.
Empty RAM is a complete waste, and is an argument against increasing RAM in Windows Mobile devices to silly headline amounts as even in standby that RAM has to be kept powered even if not being used.
Regards
Phil

How much memory should we actually be seeing ?

I should know this by now , but I dont.
512 rom leaves us with roughly 190mb for App storage depending on cache correct ?
What about free memory in task killer Showing only 66mb free. With only a few apps running. Is the new OS that heavy ?
KOF33 said:
I should know this by now , but I dont.
512 rom leaves us with roughly 190mb for App storage depending on cache correct ?
What about free memory in task killer Showing only 66mb free. With only a few apps running. Is the new OS that heavy ?
Click to expand...
Click to collapse
Android isn't like Windows. It maximizes the use of whatever memory you have. It's very rare that you'll ever see a lot of free memory (I never have on the G1, even after a reboot). The reason why, is that Android keeps the apps in memory until it starts to run out of room, then frees up memory as needed. This also makes it much faster if you end up opening up an app that's already in memory. In short, don't worry... 66mb free is a good thing.
Actually, the current firmware does not support the full 512Mb. It only supports about 200Mb.
A future kernel update will allow access to more of this (also, radio/screen/etc take some of the physical memory).
bbsydney said:
Actually, the current firmware does not support the full 512Mb. It only supports about 200Mb.
A future kernel update will allow access to more of this (also, radio/screen/etc take some of the physical memory).
Click to expand...
Click to collapse
Can you link to where you got this information?
Roughly 220MB is available to userspace in the shipping build (ERD79).
Quite a lot of memory is dedicated to the radio firmware (41MB), dsp firmware (32MB), display surfaces (32MB), gpu (3MB), camera (8MB), a/v buffers (41MB), and dsp buffers. Much of this needs to be set aside for these specific tasks due to hardware requirements of very large physically contiguous buffers which can be difficult or impossible to obtain after boot once the physical memory space gets fragmented.
The big limitation though is that the Linux kernel needs to do a 1:1 physical:virtual map of general purpose memory used by the kernel and userspace (which excludes the special purpose stuff described above). This eats into the available kernel virtual address space, which is also needed for cross process shared memory used by the binder, etc. Run out of virtual memory and things get unhappy.
In 2.6.32, HIGHMEM support for ARM will allow us to avoid this requirement for a 1:1 mapping which will allow us to increase memory available to userspace without running the system out of virtual memory adddress space.
swetland said:
Roughly 220MB is available to userspace in the shipping build (ERD79).
Quite a lot of memory is dedicated to the radio firmware (41MB), dsp firmware (32MB), display surfaces (32MB), gpu (3MB), camera (8MB), a/v buffers (41MB), and dsp buffers.
Click to expand...
Click to collapse
Thats like 200mb already. What about older phones with only 192mb and 256mb of ram?
I assume older phones will use less ram in the radio firmware and dsp firmware. So why does the N1 require so much more in the radio firmware and dsp firmware etc..?
The radio firmware is also 41MB on all previous devices.
The QSD8250 uses a new DSP which requires an additional 32MB (the 7k devices do not have this requirement). Due to the display having ~2.5x the pixels, window bitmaps are larger and that region grew from 16MB to 32MB to compensate. 720p h264 decode with the new DSP requires quite a lot of memory (41MB worst case, thus the a/v buffer size).
THANK YOU for the clear explanation. So, a later kernel/ROM release should make the unit even "faster" (that is, able to use more RAM and possibly have more things cached), correct? If so, that's sweet.

Android 1.6 vs 2.x memory footprint

Hello.
Right now I am on Cyanogen 4.2.15.1.
The biggest problem of G1 is imho lack of memory. I did every possible hack to make more memory available to my phone. I use compcache, 10mb hack etc..
I also tried swap, but it has been giving me some troubles and I find my phone working better without it.
I see everybody switching to 2.x roms and of course it makes me want to switch too although my phone runs pretty fine as it is now. But I would switch if I am convinced that things will improve. So here come the questions:
Did you experienced speed improvement by switching or it just runs the same/slower? (I am only interested in answers of G1 users as this is somehow a bit specific phone with the lack of memory)
My second question rose from my concerns of memory too. To use 2.x roms, one has to use DangerSPL, right? I am not sure about this, but I got the impression, that this one moves some of the memory from application runtime to rom space, so we can fit larger roms in. Does that mean, that in the end this rom has less operational memory for itself? Because that would be the exact opposite thing to what I want to do.
Thanks for the answers.
You as many others are confusing persistent storage with ram.
Ram is fast but will not store data over a reboot.. the amount of ram on the dream remains the same regardless of the spl/radio/rom (with maybe an exception of the 10mb hack that borrows 8mb from video ram for general use)
The persistent storage slow and is what danger spl changes.. this is the equivalent of your hard drive on a computer.
In the case of danger spl it significantly reduces the temporary space (cache) and increases both the core system storage (system) and the user space storage (data) this allows more on internal phone storage instead of the sdcard, having your core apps not using apps2sd is likely to increase perceived speed.
Since the memory (ram) is unchanged and the new kernels are better at memory management there is potential for newer versions to support more tasks at the same time than the older versions. (We are not there yet but cm-5.0.8-test4 and cm-4.2.15.1 seem similar in behavior in terms of what can be done with the ram avalible)
As for upgrading that's your choice.. in general on the dream anyway I don't recommend going to cm5.0.7 and related roms if you have not already done so.. and I never recommend a test version if you are not looking to be a tester. So I'd wait till cm5.0.8 final and related roms are pushed if you feel it's time to upgrade.
Otherwise if you are on a stable 1.6 rom that fills your needs and want to keep a very stable phone.. there is no need to rush the upgrade.. at some point you will find something that requires you to upgrade to 2.1 and will be glad it exists as it will improve the usefulness of the phone.. and I'm sure the stability of 2.1 will only improve over time.
Thank you for your answer.
I of course understand the difference between ram and persistent storage (rom?). The information I missed is that the additional memory is taken from the cache. Someone somwhere here posted something that implied that it reduces ram. Hackery!
Thank you for clearing that up. What are consequences of having less cache? Is this not a problem then?
You got my point with stable 1.6. I do not want to flash new rom every week and prefer stable working phone. The ONLY thing I was hoping for is the better memory management and maybe the whole rom footprint in ram, leaving more room for apps instead of system. I am running apps2sd but I think the main source of sluggishness of my phone is that apps are too often removed from ram by dalvik.
So I was hoping for something like " Yep, 2.1 is 50mb in ram instead of 80mb of 1.6 and you will have more free memory." That would make me switch. Having the same amount or even less makes no sense for me. I see no killer 2.x feature that I need to have so far.
Same amount of ram with both spls as I said. No 10mb hack on cm5 because the gpu is used for system operations
Cache is mounted as /cache and as I said contains temporary and cached data.. As designed its intended as a staging area, which will usually persist across reboots but may not under certain situations.
No performance impact ought to exist due to the resize. If too many things are attempted to be saved here you will get out of disk space errors.. but 30mb is plenty for the staging operations required by the system during normal operation.
As you may know: Linux never has "free" memory.. but reclaimable memory.. the reason for thus is anything read from persistent media is put into "disk cache" in case its needed again.. if the memory is needed for something else it will be freed at no/little cost, but if the cached files are needed they wont be reloaded thus saving the time reading disks/SD/flash.
(Thus why devs cringe when people show the output of free.. 'cat /proc/meminfo' will give full detailed breakdown of memory use if you qknow how to read it)
I am Linux guy myself, so I know how it manages the memory. Anyway, 10mb hack was a huge thing for me, can not live without it.
That pretty much means I am staying and 1.6, thank you for your time.

[Q] "cheated" RAM?

Hi,
I got new phone dual sim from China on wm 6.5, and in the settings/system/device information it shows 128mb of RAM, while in settings/system/memory it shows only 77. I checked 2 independent applications (cleanRam and advanced task mgr) and both of them show 77mb.
Did chinese manufacturer cheat me?
Thanks
No, you just don't understand how RAM works.
Can you please be more specific?
In my pc, running on xp I have very clear and reliable information about total ram in task manager (total, used, free), so I compare this to windows mobile. And it's different.
kriskot said:
Hi,
I got new phone dual sim from China on wm 6.5, and in the settings/system/device information it shows 128mb of RAM, while in settings/system/memory it shows only 77. I checked 2 independent applications (cleanRam and advanced task mgr) and both of them show 77mb.
Did chinese manufacturer cheat me?
Thanks
Click to expand...
Click to collapse
it means your phone is using 51mb of the memory and has 77mb free memory left to use. when you scan your phone with clean ram it shows you the free ram available. same do the task manager.
I've seen this similar problem on my iPhone4 (china/clone).. it showed, 16Gb of internal/phone memory but when I tried to put a song (more or less 5mb) it showed that I was already using 60% of the total space.. and the annoying part was that it still showed the same information before I transfered the song..
I really have to agree that we are being cheated by these manufacturers..
Hi,
come on, I am not so "newbie"...
it shows 33 used+44 free=77 total, while in specification says: 128mb of RAM
kriskot said:
Hi,
come on, I am not so "newbie"...
it shows 33 used+44 free=77 total, while in specification says: 128mb of RAM
Click to expand...
Click to collapse
I don't know how WinMo works (never used it), but on Android there's RAM designated to the Dalvik VM and another lot designated to the system/kernel.
I guess it's similar on WinMo, 51mb is probably being reserved for something useful.
kenishizen said:
I've seen this similar problem on my iPhone4 (china/clone).. it showed, 16Gb of internal/phone memory but when I tried to put a song (more or less 5mb) it showed that I was already using 60% of the total space.. and the annoying part was that it still showed the same information before I transfered the song..
I really have to agree that we are being cheated by these manufacturers..
Click to expand...
Click to collapse
Since it's a Chinese clone it's probably using really dodgy flash memory, which is acting up, rather than an intentional modification to show a larger capacity.
I just read that WM 6.5 on start takes around 40 mb of RAM, so something independent from WM is eating my RAM, or simply does not exist physically... any idea how to check it?
They are being reserved as "pagepool" Windows Mobile caches frequently accessed files in there for quick access.
You can decided how much you want to reserve for pagepool when you flash a new rom with tool called PagePool_Changer
kriskot said:
Hi,
come on, I am not so "newbie"...
it shows 33 used+44 free=77 total, while in specification says: 128mb of RAM
Click to expand...
Click to collapse
There is 128 MB of ram, but you don't get to use all of it for program memory. Some is reserverd for the page pool, the radio, hardware buffers and for the kernel/OS. The task managers just don't report the ram that you have no control over. This is how it is with all devices.
Edit: try reading this.
I am not sure how their phones work, but I do know that awhile back, I purchased a 16gb flash drive when they first came out and when I plugged it into my computer it read 4gb and even after formatting it still is only 4gb. It says 16gb on the drive itself but there is NO way that is correct. Be careful when you buy some of this Chinese garbage.

[Q] Re-Partition System Storage?

I have used to use Kaiser and Topaz for now. I think these devices made by HTC has a single chip for storage for use of both Ram and Rom.
I do not use the program memory generally, i have ~150mb of free space of it, however, i have only ~60-70mb of ram which is not enough.
Is it possible to partition this chip to change the size of ram module by picking up a little from the program partition?
As I know, It uses different modules, you can see them in this topic: http://forum.xda-developers.com/showthread.php?t=669871&page=2
And the RAM and ROM cannot be the same, because RAM forgets everything what is loaded into that if you restart/shutdown.
And you know the RAM means Random Access Memory and ROM means Read Only Memory. We can write the ROM because it has to be programmable, but it doesnt forget its data.
So I'm sorry, I think its impossible
Sorry for my English, I hope you understand.
ccaparli said:
I have used to use Kaiser and Topaz for now. I think these devices made by HTC has a single chip for storage for use of both Ram and Rom.
I do not use the program memory generally, i have ~150mb of free space of it, however, i have only ~60-70mb of ram which is not enough.
Is it possible to partition this chip to change the size of ram module by picking up a little from the program partition?
Click to expand...
Click to collapse
disable push internet .exe. it takes up 10mb ram. disable lock screen 6mb ram. disable start menu,use kenia1234 alternative for sense 15mb ram. disable htc tabs you don't use. disable htc phone skin dialer, 15mb extra ram. use these, you will get lots of free ram.

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