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[Q] Identifying and routing my mini android phone

Hi all,
Background:
I bought an android phone from Chinavasion. It is described as
Wholesale Waterproof Android Phone - Mini Android Phone From China
I cannot identify its device type which is why I am posting here. The play store identifies the phone as
Alps Ratech72_wet_rlk_lca
The phone has a MT6572 Dual Core 1GHz CPU and runs Android version 4.2.2.
I want to increase the ram of the phone. It is 256MB. I want to use virtual memory. I have a 2GB sdcard in the phone. I am planning to give it 512MB. Can I do this without rooting? If I have to root it, then how do I do so? I would prefer not to use an exploit.
Anyone any suggestions?
Pranav

Hiya,
I went around looking for some hints on this phone as well but didn't come up with anything.
I got my device yesterday and I understand your issue. I have no sollution for you but I do have a solid work-around to get some more app space which, I'm afraid, involves rooting.
Activate USB debugging, connect your device to a PC. Download and run Kingo Android Root and follow the instructions.
After that I "adb'ed" to make the phone choose the SD-Card as the default installing path. Run th following command with adb.
Code:
# adb shell pm set-install-location 2
For the apps that wouldn't move to the SD-Card, due to su issues, I moved manually with the app called Move app to SD card.
Grant the app root access to sort out the apps not willing to move by themselves.
With this sorted I now have 500 mb of apps installed on the SD-Card. I am running low on memory now due to some parts of the app still installs on the phone memory.
Not a real app2sd script but it certanly will get you some more apps installed!
Another hint: When I ordered the phone they said it supported 16 GB SD-Cards only but I'm running flawless with a 64 GB card!
I'd love to see a costum recovery (since I don't know chinese) and CM for this device, but since it's not a western phone I guess we'll have to settle with stock.
Hope this helps.

A few hours has gone by and without doing any backups I replaced some system apps and now I can bearly work the phone! Haha.. Thou shall not do this sort of thing after 2 h sleep.
Anyway, don't be afraid of doing what I wrote in the previous post, it worked just fine! I'm hoping you'll do it, it's the only way I can think of to get the system files back. :-S
Since there seem to be no one but you and me who have bought there phones..
edit: Sorted out my problem, got it running again! However, if you are going to root it, please do share the stock files! :-S

PranavLal said:
Hi all,
Background:
I bought an android phone from Chinavasion. It is described as
Wholesale Waterproof Android Phone - Mini Android Phone From China
I cannot identify its device type which is why I am posting here. The play store identifies the phone as
Alps Ratech72_wet_rlk_lca
The phone has a MT6572 Dual Core 1GHz CPU and runs Android version 4.2.2.
I want to increase the ram of the phone. It is 256MB. I want to use virtual memory. I have a 2GB sdcard in the phone. I am planning to give it 512MB. Can I do this without rooting? If I have to root it, then how do I do so? I would prefer not to use an exploit.
Anyone any suggestions?
Pranav
Click to expand...
Click to collapse
to use virtual memory you would have to root it and plus you cant get that much more ram with virtual memory, 256mb of ram on a 4.2.2 phone? i hope you got a good deal for it because 256mb will get you nowhere with nowadays google play apps updates hogging all the ram.

Some more info. Appearently the phone is also called "Nanex" and/or Z18 Mini Smartphone.. Maybe it's called different things in different regions?

Move to SD card SUCCESSFUL!
Im so glad there was this thread, it seems like nobody else knows about this awesome little phone!
I followed the instructions that "pingaan" posted and it worked! now i can install as many apps to SD card as i want, awesome!

I'm glad I could help.

I've been using this device for about a week now and I have to say that the stock rom is horrible! There are many flaws and no updates incoming, as far as I know.
Another disappinting thing is that the screen material is >VERY< easily scratched so DO NOT order this phone without screen protection.
I am going to order a new one cause I love that it's so small! It's even smaller than my old "dumbphone", but I don't see myself using stock rom. I'd rather not use the phone at all.
I'm going to try to compile a custom recovery and port a suitable CM11 rom to this device for proper usage.
Don't expect it any time soon, cause my days are normally filled up with family, house and work.
Regards.

pingaan said:
I've been using this device for about a week now and I have to say that the stock rom is horrible! There are many flaws and no updates incoming, as far as I know.
Another disappinting thing is that the screen material is >VERY< easily scratched so DO NOT order this phone without screen protection.
I am going to order a new one cause I love that it's so small! It's even smaller than my old "dumbphone", but I don't see myself using stock rom. I'd rather not use the phone at all.
I'm going to try to compile a custom recovery and port a suitable CM11 rom to this device for proper usage.
Don't expect it any time soon, cause my days are normally filled up with family, house and work.
Regards.
Click to expand...
Click to collapse
everything about this phone is pretty good for the size, except the ram is so ridiculously small, i've tried to add virtual ram with link2sd and partitioned sd card, but apparently link2sd won't work without hacing the bootloader unlocked first, but i can't unlock the bootloader as it seems like there doesn't seem to be proper drivers for this phone.
if you are planning to do a custom rom on there, please let us know how when and how you managed to get the bootloader unlocked plz! :fingers-crossed:

Since I noticed the screen being easily scratched I ordered a new device from a different retailer, along with a plastic screen protection.
There is an interesting thing about this. The bootanimations are different and there's also a reboot option in the powermenu on the new.
Maybe the bootloader already is open? I mean, if you can change the power menu you need to alter the framework, right? The bootanimation is quite easy to change with root access however.
Have you checked the built-in recovery? There is actually an option for installing "update.zip"..
Do you have a proper app2sd script that I can try out on my old device?
Cheers...

Anyone have a backup of the ROM for ratech72_wet_rlk_lca ?? I plugged in a MTK Tool and I seem to have corrupted the system ;-( ... Didn't even get a chance to backup!
Help would be appreciated!

z18 ROM
regardtv said:
Anyone have a backup of the ROM for ratech72_wet_rlk_lca ?? I plugged in a MTK Tool and I seem to have corrupted the system ;-( ... Didn't even get a chance to backup!
Help would be appreciated!
Click to expand...
Click to collapse
Anyone find a copy of the ROM I need it also?

s10+ clone from wish (MTK6580) after flashing is Dead

hello everyone, yesterday I wanted to flash my smartphone and unfortunately I forgot to backup. I deleted the whole operating system and I can't find the stock firmware anywhere ... is there anyone who knows where to get the matching firmware? I was looking everywhere and I did not find one that I could install.
specification:
MT6580WP
8xARM Cortex A7
1GB Ram
kernel 3.10.72
Bulid: I700v60_lcd_I503_zx_20190827
Android: 9.1 (but I don't believe it)

Hi, I have got the same phone its android 5.1 with 1 gb ram and 16gb storage.
It however reports android 9.1 with 6gb ram and 128gb hdd.
So playstore tries to install android 9.1 app into phone and crashes. A truly useless phone.
Unfortunately I did the same mistake as you and now I cannot find a rom for it.
Luckily I payed 20f for it so no big loss. Lesson learned.
Being said that I will keep an eye out and will post it if I find one.

28/04/2021 Android 11 (OneUI 3.1) seriously slower than Android 10 (OneUI 2.5)

Just got my device yesterday. I came with Android 11 (OneUI 3.1) pre-installed. The Android experience was slow and laggy. I did also do a update (3.1 -> 3.1), but this did not help. I did notice something similar on my OnePlus 7 after the Android 11 update and it has a Snapdragon 855, not this much slower Exynos. So i downloaded the latest Android 10 from SamMobile, flashed it with Odin and indeed, the UI is noticeable more responsive. This is NOT a placebo! Let me know if you did/do experience something similar ;D
Instructions for WiFi only version:
# Warning! All data on the local storage will be wiped! So sync all Cloud apps and backup any local data you want to keep!
# I am not responsable for damage of any kind!
1. Get a free Account on SamMobile
2. Goto https://www.sammobile.com/samsung/firmware/SM-P610/#SM-P610 and select your country
3. Grab the latest Android 10 and download (takes about 8 min.) and unzip with WinRar (It's the fastest)
4. Grab the latest Odin https://odindownload.com/ and open the firmware:
- BL_[...] -> BL
- AP_[...] -> AP
- Dismiss CP in Odin
- CSC -> CSC_[...]
- Dismiss HOME_CSC_[...] which is included in your new firmware.
- Dismiss Userdata in Odin
4. Make sure that enough battery is left. Something like 40%+.
5. Shutdown you tablet, press Volume Down + Volume Up and connect your original Samsung USB to your pc. Wait until download more shows up, then you can unpress the keys. Press volume up to continue and press the start button in Odin
(Update)
I've installed Android 10, set is up and then updated to 11 with the settings method. My tablet is running now pretty smooth... I don't know why this is but for me this worked!

I noticed this as well, I was super disappointed by how laggy and slow everything seemed to be right out of the box! I flashed Lineage and it's so much faster, but I miss the Samsung apps, I'll have to try Android 10!

i had a Tab A7 with Android 10 for testing and even with its lower hardware it was much smoother than my tab s6 lite @ Android 11. kinda disappointing... thinking about flashing lineage but i dont want to miss the Samsung Apps like Notes and the features for the S-Pen since im using this for studying

merlin.berlin said:
i had a Tab A7 with Android 10 for testing and even with its lower hardware it was much smoother than my tab s6 lite @ Android 11. kinda disappointing... thinking about flashing lineage but i dont want to miss the Samsung Apps like Notes and the features for the S-Pen since im using this for studying
Click to expand...
Click to collapse
I would recommend you to find alternatives or solutions for the features you would lose when making the step. Installing LineageOS 18.1 has kept me from ditching my Tab S6 Lite in favour of a costlier tablet - I'm actually quite happy with the thing now, both in terms of performance and battery life.

ShotSkydiver said:
I noticed this as well, I was super disappointed by how laggy and slow everything seemed to be right out of the box! I flashed Lineage and it's so much faster, but I miss the Samsung apps, I'll have to try Android 10!
Click to expand...
Click to collapse
Hi. Please tell me how you came from stock to LOS? I am interesting how to install TWRP? I tried to install but after installation via Odin i can't boot to TWRP. Pease help me.

I don't know what you are talking about! I have buy the s6 lite wifi with Android 10 on it... I have installed Android 11 when he came out and I don't see and have any problem like that.... Sure is not as fast as my S21 ultra but is perfectly fine for me for this kind of tablet.

Does this break SafetyNet? Will banking apps and Netflix still work?

trueToastedCode said:
Just got my device yesterday. I came with Android 11 (OneUI 3.1) pre-installed. The Android experience was slow and laggy. I did also do a update (3.1 -> 3.1), but this did not help. I did notice something similar on my OnePlus 7 after the Android 11 update and it has a Snapdragon 855, not this much slower Exynos. So i downloaded the latest Android 10 from SamMobile, flashed it with Odin and indeed, the UI is noticeable more responsive. This is NOT a placebo! Let me know if you did/do experience something similar ;D
Instructions for WiFi only version:
# Warning! All data on the local storage will be wiped! So sync all Cloud apps and backup any local data you want to keep!
# I am not responsable for damage of any kind!
1. Get a free Account on SamMobile
2. Goto https://www.sammobile.com/samsung/firmware/SM-P610/#SM-P610 and select your country
3. Grab the latest Android 10 and download (takes about 8 min.) and unzip with WinRar (It's the fastest)
4. Grab the latest Odin https://odindownload.com/ and open the firmware:
- BL_[...] -> BL
- AP_[...] -> AP
- Dismiss CP in Odin
- CSC -> CSC_[...]
- Dismiss HOME_CSC_[...] which is included in your new firmware.
- Dismiss Userdata in Odin
4. Make sure that enough battery is left. Something like 40%+.
5. Shutdown you tablet, press Volume Down + Volume Up and connect your original Samsung USB to your pc. Wait until download more shows up, then you can unpress the keys. Press volume up to continue and press the start button in Odin
(Update)
I've installed Android 10, set is up and then updated to 11 with the settings method. My tablet is running now pretty smooth... I don't know why this is but for me this worked!
Click to expand...
Click to collapse
Sir , This guide will work for Android 12 to Android 10/11 downgrade, Because My tab is very much lagging and I flashed Lineage, Yes Lineage is smooth but I miss Sammy apps like Samsung notes !! can I do this method to downgrade from A12 to A10?

Try it... let us know how it goes. GL

Huawei mediapad T1 8.0 pro

Bought this huawei tablet for my son I no its a pretty old tablet now but its still brand never been used really as you can't do much on it . I wanted to see if any one can help me root it so I can extend ram by using storage space . Its running 4.4.4 . Are is there any custom roms out there I can use could soon one please help with this thanks

Extending Android's internal storage memory by using an external SD-card is only possible on devices with Android 5 and higher and only if this feature is implemented in Android OS, too. Take note you never can extend tablet's RAM, unless you create a SWAP memory what requires device's Android is got rooted.
Hence you would have to find and flash a Custom ROM based on Android 5 and higher what at 100% is suitable to this tablet, what additionally requires you have to find and flash a Custom Recovery - what also is at 100% suitable to this tablet - before.

jwoegerbauer said:
Extending Android's internal storage memory by using an external SD-card is only possible on devices with Android 5 and higher and only if this feature is implemented in Android OS, too. Take note you never can extend tablet's RAM, unless you create a SWAP memory what requires device's Android is got rooted.
Hence you would have to find and flash a Custom ROM based on Android 5 and higher what at 100% is suitable to this tablet, what additionally requires you have to find and flash a Custom Recovery - what also is at 100% suitable to this tablet - before.
Click to expand...
Click to collapse
Could you point me in the right direction for the custom rom . And custom recovery please . As this tablet is no good for nothing with 4.4.4 on thanks

Custom ROM for SM-J500FN

Hi
My first time here.
I've seen there is a forum specifically for this buy I'm not sure if my question should go there or here.
Samsung Galaxy J5 (2015) ROMs, Kernels, Recoveries
I have a Samsung J500FN with Android 6.0.1 and I'm looking for a custom ROM that can make it last a bit longer. Here are my requirements.
I don't want to root it as that will probably not allow me to use my banking app.
I need a ROM that does not have, or allows me to remove, all the bloat that comes from factory: word, excel, weather, powerpoint, chrome, facebook, samsung's internet, etc.
I've seen that some of the available ROMs come with Android 8, 9 and even 10 but I suspect these OSs take up a lot more space. If that is so I don't want them as my mobile only has 8 GB and I don't want to have to spend my days deleting cache, memory and apps.
Any suggestions?
Thanks in advance, Eduardo

Eduardo de Juan said:
Hi
My first time here.
I've seen there is a forum specifically for this buy I'm not sure if my question should go there or here.
Samsung Galaxy J5 (2015) ROMs, Kernels, Recoveries
I have a Samsung J500FN with Android 6.0.1 and I'm looking for a custom ROM that can make it last a bit longer. Here are my requirements.
I don't want to root it as that will probably not allow me to use my banking app.
I need a ROM that does not have, or allows me to remove, all the bloat that comes from factory: word, excel, weather, powerpoint, chrome, facebook, samsung's internet, etc.
I've seen that some of the available ROMs come with Android 8, 9 and even 10 but I suspect these OSs take up a lot more space. If that is so I don't want them as my mobile only has 8 GB and I don't want to have to spend my days deleting cache, memory and apps.
Any suggestions?
Thanks in advance, Eduardo
Click to expand...
Click to collapse
chill bro,
1) for banking app like sbi uno and other use magisk. its open source and works well to hide root.
2) android 7 would be great for you because samsung switched to art in it and is a lot faster smooth and consume less space and is supported by most apps.
3) i know the pain of having 8gb rom so, try to use opera mini instated of chrome and try to optimise system by removing unnecessary software using root+magisk.
4) android 9 is also good. just flash try and see if its what you need.
thanks hit like if i helped.

@Eduardo de Juan
IMHO LineageOS is the right choice for you.
How To Install Lineage OS 17.1 for Samsung Galaxy J (Android 10 Q)
Now you can install Lineage OS 17.1 on Samsung Galaxy J which is stable enough to use as a daily driver. Finally, Android 10 Q is official
www.getdroidtips.com

[email protected] said:
chill bro,
1) for banking app like sbi uno and other use magisk. its open source and works well to hide root.
2) android 7 would be great for you because samsung switched to art in it and is a lot faster smooth and consume less space and is supported by most apps.
3) i know the pain of having 8gb rom so, try to use opera mini instated of chrome and try to optimise system by removing unnecessary software using root+magisk.
4) android 9 is also good. just flash try and see if its what you need.
thanks hit like if i helped.
Click to expand...
Click to collapse
I would like to try Android 7 if it's lighter then Android 6 but I prefer not to have root.
I've been reading that ING app doesn't work with magisk so I prefer not to struggle there.
Why doesn't my phone automatically update to Android 7, doesn't Samsung provide for this?
Where can I download a Android 7 ROM ?
BR, E

jwoegerbauer said:
@Eduardo de Juan
IMHO LineageOS is the right choice for you.
How To Install Lineage OS 17.1 for Samsung Galaxy J (Android 10 Q)
Now you can install Lineage OS 17.1 on Samsung Galaxy J which is stable enough to use as a daily driver. Finally, Android 10 Q is official
www.getdroidtips.com
Click to expand...
Click to collapse
Do you think that even if it's Android 10 it will be lighter than my present Android 6?
As I mentioned I don't want to root. I see that the link you included has a GAPPs installation so I guess the Lineage ROM comes without those.
I use OpenSuse linux so I would like to install from there, any problems?
Otherwise can I do it from a Windows 7 virtual machine?
BR

It really doesn't matter whether it's Android 10 or Android 6 or whatever version what is running. As with any Android for each app a predefined heap size ( the maximum amount of RAM the app can allocate ) exists which is passed through configuration properties inside Android's build.prop file. Usually, heap size is relative to the RAM size of the Android device. So, an Android device with 1 GB of RAM will normally have a heap size of 128 MB and a device with 2+ GB RAM a heap size of 256 MB.
Assuming Android OS itself is eating 500 MB RAM to properly run, then on your phone can - at maximum - run up to 30 apps using 256 MB ( large-heap-size ) simultaneously.

jwoegerbauer said:
It really doesn't matter whether it's Android 10 or Android 6 or whatever version what is running. As with any Android for each app a predefined heap size ( the maximum amount of RAM the app can allocate ) exists which is passed through configuration properties inside Android's build.prop file. Usually, heap size is relative to the RAM size of the Android device. So, an Android device with 1 GB of RAM will normally have a heap size of 128 MB and a device with 2+ GB RAM a heap size of 256 MB.
Assuming Android OS itself is eating 500 MB RAM to properly run, then on your phone can - at maximum - run up to 30 apps using 256 MB ( large-heap-size ) simultaneously.
Click to expand...
Click to collapse
Thanks for your reply.
What I meant by lighter refers to the scarce 8 Gb on my device, not the RAM. With only 8 Gb there is a very low limit to the amount of apps I can install. Maybe with Lineage there is more of those 8 Gb free.
And that takes me to the Gapps packages. When reading the link for Gapps it offers various packages and I'm a bit lost as to which I should download.
Open Gapps for LineageOS 17.1 GSI build: Download
Open Gapps for Android 10
ARM: Download Open Gapps 10 ARM Zip
ARM64: Download Open Gapps 10 ARM64 Zip
BiTGApps for Android 10 Custom ROM | Link
GApps for LineageOS 17 | Link
BR

I've downloaded the Lineage ROM file and have a doubt about the name of the file and whether it's valid for my model. The name of the file is
lineage-17.1-20201213-UNOFFICIAL-js01lte.zip
What worries me is the "...js01lte" part.
My mobile is SM-J500FN, also "j5nlte"
BR

ok, I think I'm almost ready to flash my first ever custom rom.
I've been reading to understand what I'm getting into.
One doubt. It seems that TWRP is capable of installing the custom rom without me telling it what partition it should be flashed to.
My question, if I want to flash a Samsung stock ROM can I also use TWRP or must I use Odin or Heimdall and flash it to the appropriate partition?
BR, Eduardo

Before I proceed
Installation instructions state "Then, select the System, Vendor, Data, and the Cache partition and perform a right swipe to format the selected partitions."
My device doesn't show the vendor partition.
Is it ok to proceed ?

Eduardo de Juan said:
Before I proceed
Installation instructions state "Then, select the System, Vendor, Data, and the Cache partition and perform a right swipe to format the selected partitions."
My device doesn't show the vendor partition.
Is it ok to proceed ?
Click to expand...
Click to collapse
Still insstalling? I think lineageOS is not the right solution for you. I got the same phone and made it work by disabling bloatware.

Hi Kurtin
from what I've learnt until now disabling bloatware doesn't free up any space, it just doesn't show but it's still there.

You need to see the partitions separately. The stock version of each app is stored in system partition. That is no problem. You can't use free space in system partition.
Our problem is data partition. Each enabled app will try to store it's data and updates in data partition. That makes the device unusable.

I think I understand what you mean and therefore installing a different ROM won't help unless it changes the partition setup.
Thanks for your support.

Eduardo de Juan said:
I think I understand what you mean and therefore installing a different ROM won't help unless it changes the partition setup.
Thanks for your support.
Click to expand...
Click to collapse
Installing a different ROM will help. Custom ROMs usually have less bloatware that occupies data partition for updates.
Same effect as disabling apps in stock ROM.

Hi
our exchange started when you stated "I think lineageOS is not the right solution for you. I got the same phone and made it work by disabling bloatware."
Can you propose a better custom ROM that addresses our needs or didn't you explore that track?

Eduardo de Juan said:
Hi
our exchange started when you stated "I think lineageOS is not the right solution for you. I got the same phone and made it work by disabling bloatware."
Can you propose a better custom ROM that addresses our needs or didn't you explore that track?
Click to expand...
Click to collapse
LineageOS 17.1 should be OK.