Specs and Information - General Questions and Answers

Hello there!
I would like to know which specifications should i know before looking for a ROM or another, due to the fact that i haven`t been able to see many ROMs on this subforum.
There are a couple of them i would like to try, but sadly i dont find them over here (one of them is CorvusOS, and the other one is ParanoidAndroid).
Give all this information, and having tried to read and inform myself a little bit, i have found several things i would like to know before doing anything:
I have a Redmi 9AT, which if im not wrong "similar" to Redmi 9A. There is a custom ROM for Redmi Note 9 Pro, ¿could it work a ROM for that device, work on mine?, if it weren`t the case, ¿which specs should i look for?
I have used this page to compare these 3 devices.
If it weren`t possible none of them, i would at least like to try ArrowOS, but before anything i would like to know your opinions

A Custom ROM must be tailored to device's hardware specs to work properly.

xXx yYy said:
A Custom ROM must be tailored to device's hardware specs to work properly.
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Yes! I have read that, but i wonder if with changes on specific fields (for example on this case, CPU and GPU) could still be viable.
Like most of the other components, seem to be similar
Thanks for your answer

Related

Android OS

Hey. Ive done a few mods and upgrades already, but one thing has always stumped me about android os and apps. Can anyone explain the variations between the different roms? I understand that the scale and power difference between say a phone and a tablet cause there to be differences, but why is there such gulfs separating to almost identical devices? Take, as a possibly poor example, a yarvik 10.1" tablet and an almost identical viewsonic 10.1" tab. what would stop the viewsonic roms from working on the yarvik? Apologies if this has already been answered somewhere else, I haven't managed to find a similar thread to answer this for me.
Thanks
OmcRepairs said:
Hey. Ive done a few mods and upgrades already, but one thing has always stumped me about android os and apps. Can anyone explain the variations between the different roms? I understand that the scale and power difference between say a phone and a tablet cause there to be differences, but why is there such gulfs separating to almost identical devices? Take, as a possibly poor example, a yarvik 10.1" tablet and an almost identical viewsonic 10.1" tab. what would stop the viewsonic roms from working on the yarvik? Apologies if this has already been answered somewhere else, I haven't managed to find a similar thread to answer this for me.
Thanks
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The main reason the ROMs aren't able to be used on both devices is because they have a different chipset and hardware. And ROMs are designed to work with the specific hardware of a specific device. The only way to get them to work on other devices is to port the ROM you want to that device (Porting ROMs ranges from pretty straightforward to extremely hard).
Sent from my SCH-I535 using xda premium

Has anyone bought generic unbranded smartphones available on ebay etc?

1) I'm hoping someone can advise pls! I'm a very light user mostly for wsapp and sometimes maps/gps when walking (no gaming and occasionally watch youtube videos) so was hoping to find something £40-£50.
https://www.ebay.co.uk/itm/M20-Pro-...var=564119885073&_trksid=p2055119.m1438.l2649
There are others I'm looking at but they don't mention anything about the processor (sometimes it'll mention the number of cores but no name)? The specs seem way better than even xiaomi phones for the same money, I know there's gonna be no support updates etc. how important is that? Couldn't I just search for a custom ROM, try to upgrade to higher android version etc? Would it be difficult/impossible to find roms for an unbranded phone?
Also I've read that there's a possibility they could just be sneaky re-brands so potentially could be getting a xiaomi etc. phone for less?
2) I'm also considering paying a bit more if unbranded is a no-go. Xiaomi Redmi 7 3GB/32GB around £100 vs Xiaomi Mi Play 4GB/64GB if it's £6 more?
I like the extra ram and storage for only £6 more but the battery seems better on R7 and larger screen
MTK devices
supashaka said:
1) I'm hoping someone can advise pls! I'm a very light user mostly for wsapp and sometimes maps/gps when walking (no gaming and occasionally watch youtube videos) so was hoping to find something £40-£50.
https://www.ebay.co.uk/itm/M20-Pro-...var=564119885073&_trksid=p2055119.m1438.l2649
There are others I'm looking at but they don't mention anything about the processor (sometimes it'll mention the number of cores but no name)? The specs seem way better than even xiaomi phones for the same money, I know there's gonna be no support updates etc. how important is that?
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I've seen some advertisements (on wish.com or Ali Express) for devices with no apparent name brand that mention having 10 core processors, dual sim, Android 9 and more. These are all MTK devices which pose difficulties if you want to flash a ROM into them to upgrade or change something. RCA tablets are MTK devices and I, along with many others have spent a lot of time just trying to gain access to such devices. It's been done. However, it has been more than difficult as of yet to find any compatible ROMs and these devices are extremely picky when it comes to using other ROMs. For those of us that are currently still working on it, we have yet to find anything compatible. That's not saying they are bad devices, they are actually pretty good I've had mine (the RCA Maven, Viking and Galileo) for years with little problems.
Casper Young said:
I've seen some advertisements (on wish.com or Ali Express) for devices with no apparent name brand that mention having 10 core processors, dual sim, Android 9 and more. These are all MTK devices which pose difficulties if you want to flash a ROM into them to upgrade or change something. RCA tablets are MTK devices and I, along with many others have spent a lot of time just trying to gain access to such devices. It's been done. However, it has been more than difficult as of yet to find any compatible ROMs and these devices are extremely picky when it comes to using other ROMs. For those of us that are currently still working on it, we have yet to find anything compatible. That's not saying they are bad devices, they are actually pretty good I've had mine (the RCA Maven, Viking and Galileo) for years with little problems.
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Thanks for the reply. Any MTK processor devices are difficult/unlikey to have custom roms or tweak/upgrade in any way?
MTK devices
supashaka said:
Thanks for the reply. Any MTK processor devices are difficult/unlikey to have custom roms or tweak/upgrade in any way?
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Theoretically there should be, but many here would rather work on the newest devices most of which are not MTK (Media Tek). They're not built like Samsungs and if you open one up the whole motherboard is the size of today's phones or roughly one quarter the size of the tablet which could be the reason they're so cheap. The only thing I've been able to flash into mine is the original stock firmware, anything else led to bricking. And recovering from a brick is difficult the SP Flash tool is nothing like the Odin3 we use for Samsungs.
Casper Young said:
Theoretically there should be, but many here would rather work on the newest devices most of which are not MTK (Media Tek). They're not built like Samsungs and if you open one up the whole motherboard is the size of today's phones or roughly one quarter the size of the tablet which could be the reason they're so cheap. The only thing I've been able to flash into mine is the original stock firmware, anything else led to bricking. And recovering from a brick is difficult the SP Flash tool is nothing like the Odin3 we use for Samsungs.
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I have also bought uhans u300 and took a look at the Development & Support topic here, there's absolutely no way to upgrade it from Android 6.0?

Ematic EGQ235SK

Anyone know where to find a ROM for an Ematic EGQ235SK tablet?
Thanks
RoDnSuE said:
Anyone know where to find a ROM for an Ematic EGQ235SK tablet?
Thanks
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Didn't find anything for your device, maybe try it yourself :
https://forum.xda-developers.com/chef-central/android/guide-android-rom-development-t2814763
RoDnSuE said:
Anyone know where to find a ROM for an Ematic EGQ235SK tablet?
Thanks
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Do a google search for:
"Custom ROMs for (your specific model number)"
If that doesn't find anything, nothing exists. It is just that simple. No one hides the information under a rock so it isn't like it is secret or hidden.
For future reference, cheap, obscure, unknown, unpopular devices such as yours do not get ROMs because no "real" developer would ever be interested in devices like that. If you want to use ROMs, you'll have to get a more commonly used device. Even the flagship brands such as Samsung, LG, etc... don't have ROMs for all of their models, only the high end, popular devices such as the Galaxy S devices or the LG K series device.
If a device is cheaply made, generically branded, has low end specs, is obscure, unknown or unpopular, it will not have custom ROMs available for it unless an owner of that device gets fed up with not being able find anything for their device and decides to build a ROM themself and then it isn't the best ROM because they typically do not know what they are doing and have to learn how to build ROMs on the fly just to get their ROM built.
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Cheap Chinese phones with good custom ROM support

Hi,
since today there's the big 11.11 sale and I could need a new secondary phone I was looking for a cheaper model (say up to 150€ maybe 200€).
One could get some very nice hardware for this money already, but unfortunately they come with software that I don't trust.
Also I'd like to avoid Xiaomi and their annoying bootloader unlocking process (unless it's Android One).
Do you know any newer phone model or brand in general that has good custom ROM support? I looked at the supported device list of LineageOS but most of the devices are either a bit old or quite expensive. Ulefone, Dogee, Umidigi, Oukitel or how they are all called - I don't care as long as I can install my own software.
Thanks in advance for your recommendations.
simsees said:
Hi,
since today there's the big 11.11 sale and I could need a new secondary phone I was looking for a cheaper model (say up to 150€ maybe 200€).
One could get some very nice hardware for this money already, but unfortunately they come with software that I don't trust.
Also I'd like to avoid Xiaomi and their annoying bootloader unlocking process (unless it's Android One).
Do you know any newer phone model or brand in general that has good custom ROM support? I looked at the supported device list of LineageOS but most of the devices are either a bit old or quite expensive. Ulefone, Dogee, Umidigi, Oukitel or how they are all called - I don't care as long as I can install my own software.
Thanks in advance for your recommendations.
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Idk if this offer will be available in your country, but for 204€ you can have a google pixel 3a, it has really good ROM support, easy bootloader unlock, and official Android updates.
Here's the link : https://www.backmarket.fr/google-go...cSYGn2dk7zH0iLe_IMj76LldDMGMtSYRoCnuoQAvD_BwE
Try this one if the other doesn't work with your country :
https://fr.shopping.rakuten.com/mfp...rid=pt|930664584875|m|471167205547|3912771384
In short, Google pixel 3a is a good 2ndary phone
The cheap knock offs state fake specs on the phone and descriptions. Since they are all slightly different you would have to study the product in detail using an app called phone information. https://play.google.com/store/apps/details?id=com.inpocketsoftware.andInfo&hl=en_CA&gl=US
The most common processor is the MT65XX. Most of these phones are surprisingly 32bit only. The sellers will never tell you exact specs before you buy, so it's a gamble. I have the Oukitel K9 with a MT6765 that works with Android 12 GSI, but lacks a partition and required some additional magisk setup. Having this knowledge you can look for Oukitel as a model number in the Spec on websites. For instance Mix 4 (knock off) all fake specs but the model is Oukitel and chances are the processor should be Mediatek. If the processor is greater than MT67XX and Ram is 4GB then you will be able to install GSI provided the partitions are standard.

Custom rom development on All new dimensity chips

Hello community.....happy to see all are still helping needy......
Today it's my turn I request all my lovely developer's to clear my confusion....
I just wanted to buy a new phone with dimensity chipset. But as I know it's made by Mediatek, n with my little knowledge It's big a problem for developer's with Mediatek chipset to develop custom roms as they never or rarely release their source code.
So my question is now (I think) trend is changing is there any possibilities to have some custom roms based on newly launched Dimensity 7,8,10,11 & 12 series chipset based phone's.
If someone shred a your precious light on this issue will solve my problem in buying a new phone.
Thank you in advance n believe me will hit button as much I have allowed
I also was questioning the same thing. Let's hope we will get an answer
Still no answer to this? Are those chips so unpopular?
gmbhneo said:
Still no answer to this? Are those chips so unpopular?
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Don't know bro ...still not able to decide which one to go either with dimensity 1200 or sd695....may be my thread is not that much popular
I am using the Realme 9 Pro plus for some time now. It is a great device but I would go with an SD chipset in the future.
if you dont need custom rom , emulation , then mali gpu is fine

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