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DiscussionSamsung SM-J400F Galaxy J4 (2018)
Samsung SM-J400F Galaxy J4 (2018)
Description | Discussion пїЅ | Firmware пїЅ

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• To compare the device with competitors and on the choice of devices, please contact: Selection and Comparison.
• The available amount of RAM and memory for installing applications is discussed in the topic: How much memory is in your machine?
• The results of performance tests of Android devices, see the topic: Benchmark
• Before posting photos, read the topic Working with Images on the forum
• Messages that are not related to the topic of discussion (offtopic) are deleted without warning.
  

Specifications

1. Dimensions and weight - 151.7 x 77.2 x 8.1 mm, 175 grams
   
2. Body materials - Plastic
   
3. Display - 5.5 inches, 1280x720 pixels, 16: 9, SuperAMOLED, 267 ppi
   
4. Operating System - Google Android 8.0
   
5. Platform - Exynos 7570, 4-core to 1.4 GHz (Cortex A53), MALI-T720 MP2
   
6. Memory - 3 GB of RAM, 32 GB of ROM, microSD memory card up to 256 GB (in other markets 2/16 GB)
   
7. Wireless Interfaces - Wi-Fi b / g / n, Bluetooth 4.2
   
8. Network - 2G: 850/900/1800/1900 3G: 850/900/1900/2100 4G: 1/3/5/7/8/20 Dual SIM cards, microSIM
   
9. Navigation - GPS / GLONASS / Beidou
   
10. Sensors and connectors - microUSB (USB 2.0) Accelerometer, proximity sensor
    
11. Main camera - 13MP, f / 1.9, LED flash, 1080p video recording (30 frames per second)
    
12. Front camera - 5 MP, f / 2.2
    
13. Battery - Li-Ion 3000 mAh, talk time up to 11 hours, standby time - up to 500 hours
    
14. Degree of protection - no
    
15. Colors - black and gold
    
16. Features - FM Radio
    
    

Photo

Useful

Test menu
Entering the firmware mode (Download mode)
SamFirm PC 0.3.6
Google Account Bypass (FRP) Ways After Reset
Review from Balag
How to remove pre-installed apps without root
SAMSUNG service codes
5 file firmware SKZ-J400FXXU2ARL1_J400FOXM2ARL2-20181219
TWRP 3.2.3
OEM unlock
Reset frp to android 8.1
Kernel with the ability to change SElinux

There is no curator in the subject. For questions about filling the caps, please contact the section moderators via the buttonunder the messages to which you want to add links.

Post has been editedLexx808 - 28.04.19, 13:24

Reason for editing: Navigator

[curiousus]

st_alex_73,This is not a unique feature of the subject. It happens on many models (maybe even all).
It remains to try the problematic combination of these sims in another instance of the subject. If it will be the same - see, cant model (whether the hardware or modem firmware? ..). If they work normally in another instance of J4, then this is most likely a hardware failure of your instance. I think so.

And - such a question.
After rearrangement of the main sim card in the second slot, its role has not changed? Still, the main work? And the "spare" - so the spare and remains, now in the 1st slot?

[st_alex_73]

[email protected], 00:49

st_alex_73,This is not a unique feature of the subject. It happens on many models (maybe even all).
It remains to try the problematic combination of these sims in another instance of the subject. If it will be the same - see, cant model (whether the hardware or modem firmware? ..). If they work normally in another instance of J4, then this is most likely a hardware failure of your instance. I think so.

And - such a question.
After rearrangement of the main sim card in the second slot, its role has not changed? Still, the main work? And the "spare" - so the spare and remains, now in the 1st slot?

Well, for now, I don’t have the opportunity to check on another device, since there is no other J4.
And the role of SIM-cards has not changed, the main one is already in the 2nd slot, the spare one is in the 1st ... Everything works without problems ...

[super.nikita100]

Some two restrictions on the networks are.

I fall down there, and there it is empty.

Question:
Where to see it, what are these 2 limitations?

Post has been editedsuper.nikita100 - 16.03.19, 04:51

[BAKYYM]

super.nikita100,
Wi fi must be included. Then show.

[swen4]

Those who installed TWRP are dedicated to:Samsung SM-N960F / DS Galaxy Note 9 - Unofficial firmware (Post alexega # 78455878)It is also possible for our device.

[Aleks Martin]

st_alex_73,There is such a topic! Yuzal used to have 2 SIM cards, and, occasionally (once or 2 per month), the connection fell off ... And sometimes on two SIM cards at once. This difficulty was treated mainly on its own, in a minute or two the connection and the Internet were restored. If you wait for it, then turn off the mobile data, or reboot. Established a pattern: this bug manifested itself only when you sit for a long time (2-4 hours) on the mobile (not via Wi-Fi) Internet, in Opera mini browser, no matter what SIM card ... Also, on my old Galaxy J2 phone with 5.1 android this bug with the same sims, on the same browser, showed up exactly the same, with the same rare frequency, and was treated the same way. Thus, IMHO, the difficulties are not significant, and not much worried.

[Aleks Martin]

[email protected], 00:49

st_alex_73,This is not a unique feature of the subject. It happens on many models (maybe even all).
It remains to try the problematic combination of these sims in another instance of the subject. If it will be the same - see, cant model (whether the hardware or modem firmware? ..). If they work normally in another instance of J4, then this is most likely a hardware failure of your instance. I think so.

And - such a question.
After rearrangement of the main sim card in the second slot, its role has not changed? Still, the main work? And the "spare" - so the spare and remains, now in the 1st slot?

Not. The main one will be the first slot (add. SIM). It is necessary to reconfigure in the SIM card manager.

[curiousus]

Aleks Martin,Yes, I meant it - did it reconfigure st_alex_73The role of simok in the dispatcher.

[rifat1955]

Friends, a unique feature of the device is a replaceable battery. Brand battery anywhere in the reviews are not visible, can anyone in the know,
EB BJ400BBC not suitable?

[follower1]

[email protected], 12:58

Brand battery anywhere in the reviews are not visible, can anyone in the know,

in my worth EB-BJ700CBE

Post has been editedfollower1 - 16.03.19, 14:42

[rifat1955]

follower1 @ 03/16/19, 2:26 pm

EB-BJ700CBE

and you found a spare? and then solid EB-BJ700BBV
on Alihttps: //www.aliexpress....4483.0.0.6daf122cFkUfFG
Battery Type:EB-BJ700CBE
Battery capacity: 3000 mAh
Voltage limit: 4.4 V
Compatible with: For samsung GALAXY J7 J7008 J700F J7009 J7000 NFC 2015

Post has been editedrifat1955 - 16.03.19, 17:03

[Euleove]

At the dawn of this topic, the issue of batteries has already been raised. I made a screenshot to my memory, as I understand it now, uninformative. Here is a friend mentioned that suitable batteries from such old Samsung

Screen

I do not know if infa will help.
Oh, here the author himself in the dialogue :) I apologize for the carelessness. :)

Post has been editedEuleove - 16.03.19, 17:14

[Waseeam]

Nice lock

пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ download

: ODEX
Description: Nice Lock application renamed to Good Lock, ads removed, full screen application replaced, application icon replaced.

Add. screenshots

Installation: As a normal application

Download : Good_Lock.apk(3.61 MB)

Download : Samsung_Lockstar.apk(7.02 MB)

Download : Samsung_Quick_Star.apk(3.41 MB)

Download : Samsung_Task_Changer.apk(4.1 MB)

[Gsmaga]

If I have firmware version FXXU2, can I flash on FXXU1 ???
And will the date change in the security level of android ???

[~ Kirill_M ~]

Gsmaga
No you can not

[ArtemSportsmen]

Good day to all! Please tell me that in Samsung Galaxy J4 the volume of the call signal is at its maximum, but still this volume does not suit you, you want a little louder, the previous phone (j1mini) played the standard ringtone quite loudly, how can you increase the volume?

[st_alex_73]

Aleks Martin @ 03/16/19, 09:35

St_alex_73, There is such a topic! Yuzal used to have 2 SIM cards, and, occasionally (once or 2 per month), the connection fell off ... And sometimes on two SIM cards at once. This difficulty was treated mainly on its own, in a minute or two the connection and the Internet were restored. If you wait for it, then turn off the mobile data, or reboot. Established a pattern: this bug manifested itself only when you sit for a long time (2-4 hours) on the mobile (not via Wi-Fi) Internet, in Opera mini browser, no matter what SIM card ... Also, on my old Galaxy J2 phone with 5.1 android this bug with the same sims, on the same browser, showed up exactly the same, with the same rare frequency, and was treated the same way. Thus, IMHO, the difficulties are not significant, and not much worried.

I showed a little differently, the connection for all the time was gone only once, but the mobile Internet fell off constantly, and only on the main SIM that was in the 1st slot, and with the non-core in the 2nd slot everything was OK, no dumps was not noticed. And the dumps occurred fairly quickly after the mobile Internet was turned on, maybe 10-15 minutes later, and no matter what application I was at that moment .., pop and no, dry the oars ... And it was treated, yes, sometimes by itself: a minute or two .., but more often it was required, either turning off / on the network, or rebooting ... moreover, sometimes, the mobile network icon in the status bar hung and showed that the Internet is active, although I have already turned it off ... and until the icon disappeared, Nat was not, at least do what you want ...
Yes, the role of sims was set up in the device, as I wrote: the main 1st slot, the secondary 2nd ...

[email protected], 12:16

Aleks Martin, yes, I meant it - whether st_alex_73 reconfigured the role of simok in the dispatcher.

Yes, as I wrote above, after I changed the SIM card slots in places, I made a reconfiguration, now it is configured: the main one is the 2nd slot, the secondary one ... When there were dependencies, it was the other way around ...
Now everything works without problems ...

[kdl09]

ArtemSportsmenI did not torture the phone, I found a simple way for myself. I downloaded the mp3gain program on my computer and in it you can change the volume in any melody. So so and do. On the phone, I cut what I want, and if the volume does not suit, then I add it through the computer

Post has been editedkdl09 - 16.03.19, 23:08

[ArtemSportsmen]

kdl09,Thanks for the recommendation.

[yakerk31]

People, what's the problem?
I play various demanding games (pubg, WoT blitz). The problem is only with tanks. I already play on low graphics, as soon as I enter the boy- phone restarts.
Is it a marriage?