Samsung Galaxy A51
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Samsung Galaxy A51

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Great phone. I unlocked bootloader and installed OneUI 6.1 (X-ROM, S21FE port) with Android 14, and latest June 2024 security patch. It even has Samsung DEX which is normally only saved for the "S" series. My previous rom was PixelExperience (A13) which worked great but i wanted the latest OneUI w/ DEX.
The battery is still going strong a full day.

My previous device was a Galaxy S10 that i dropped and shattered, i don't really noticed any speed differences in normal phone operations. I do not play games so i don't know how that will be like on this Exynos CPU and mid-tier GPU. For now i'm content with the phone, even for it's age. Bought it secondhand in The Netherlands for €70.

    Anonymous, 09 Jun 2024Its a phone great for daily use. I got this phone in early... moreYeah, mine is also four years going strong right now (I bought it in March 2020). I have abused the crap out of it and also heavily used it daily. And I still get 5-6 hours of screen on time out of it to this day with constant web-surfing, video streaming, music with bluetooth headsets connected, and some navigation (though I must point out that I don't game at all on this thing).

    My only complaint with this thing is the unreliable signal reception. My A51 can't hold a candle to my wife's Galaxy A71 in this regard. Even my dad's old A30s did better (and that thing also had an Exynos like the A51). The Exynos 9611 is still good for day-to-day tasks even in 2024, and the wi-fi range on this thing is ridiculously good, but the 4G signal reception is unreliable.

      Ghostrider, 01 Jun 2024it's a wrost phone for quality of body (low quality pl... more"it's a wrost phone for quality of body (low quality plastic)"

      You're joking, right? I have owned once since March 2020. I have dropped my phone innumerable times and have also thrown it against a wall in a fit of rage once (albeit, it did have a thick silicone case on at the time). And it has no damages on it to date. At all. It has even gotten a tad wet once in a light rain shower and kept on going without issue.

        • ?
        • Anonymous
        • XW}
        • 09 Jun 2024

        Its a phone great for daily use.
        I got this phone in early 2020 after I saw ads on TV.
        It can handle gaming with no problem, but with demanding games such as Grid Autosport, it may run at a low framerate. I'm using the 6GB RAM version so it might be different to an 8GB RAM version.
        Overall, for me, its a 8.5/10.

          • G
          • Ghostrider
          • D0e
          • 01 Jun 2024

          it's a wrost phone for quality of body (low quality plastic) durability and sound
          Camera is better, storage and peformance is better for normal user

            • r
            • raish
            • sr2
            • 31 May 2024

            Best phone I ever had. Got it December 2020. I bought it new. I still have it and I never experienced any problems with it. Battery still going strong and I never even changed it!

              • O
              • Oompie
              • rva
              • 14 May 2024

              My A51 runs smoothly from May 2021 to December 2023 and then it just went mad. The system keeps booting the phone to the Basic startup screen as soon as you open any app or try to run something. The technical repair shop say it is a known problem with their motherboards getting too hot and then it keeps on giving these kind of errors.

                • U
                • UglyBezzel
                • pdw
                • 10 May 2024

                Anonymous, 03 May 2024A55 has ugly bezels. Why did previous samsung midrange mode... moreYou are what my name says. Good phone overall

                  • ?
                  • Anonymous
                  • JH9
                  • 03 May 2024

                  random passerby, 20 Mar 2024no, it's not available anymore... try the newer one, l... moreA55 has ugly bezels. Why did previous samsung midrange models have thinner bezels??! Makes no sense... -.-

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                    • Alex
                    • Tmp
                    • 23 Apr 2024

                    Owned mine since June 2022, still works good, takes good photos and videos but sometimes lag at lower battery percentage or just random. Sadly the phone does not receive updates anymore but I'm planning to keep mine to 2025 at least before upgrading.

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                      • Anonymous
                      • a0@
                      • 23 Mar 2024

                      NAN, 06 Mar 2024Is samsung A51 still availableYes. I have it

                        • r
                        • random passerby
                        • 6cc
                        • 20 Mar 2024

                        NAN, 06 Mar 2024Is samsung A51 still availableno, it's not available anymore... try the newer one, like A55

                          • R
                          • Rayappan
                          • DkZ
                          • 12 Mar 2024

                          NAN, 06 Mar 2024Is samsung A51 still availableNo.

                            • N
                            • NAN
                            • fnD
                            • 06 Mar 2024

                            Is samsung A51 still available

                              • S
                              • Sauron
                              • gq1
                              • 04 Mar 2024

                              Beware, it hasn't received security updates since August 2023, and a pretty bad security issue (the libwebp vulnerability) was discovered and fixed in the October 2023 security update which never reached this phone. Really sad, it's a great phone which could have lasted for many more years instead of becoming e-waste.

                                • ?
                                • Anonymous
                                • Lxm
                                • 05 Feb 2024

                                I am happy to report 9910 does 6.64 tokens per second running TinyLlama-1.1B-2bit.gguf and 2.43 tokens per second running Rocket-2.31bpw.gguf, 2bit state of the art using a newer quantization technique. Local AI FTW!
                                That's okayish, Rocket is quite good for its size, but people mostly begin talking to AI earnestly once the model is 7Billion Parameters or higher.

                                  • R
                                  • Rk
                                  • 7tS
                                  • 04 Feb 2024

                                  I feel proud Samsung A51 price had never dropped though I bought it on 18th January 2020.. never disappointed me. Samsung Monte and Samsung A51 are the best models ever in Samsung history. Using the phone in rough n tough scenario's also, there were no signs of either internal or external damage. Best model.

                                    • ?
                                    • Anonymous
                                    • Lxm
                                    • 04 Feb 2024

                                    I was amusingly rocking the phone back and forth in an arc, when suddenly the camera viewfinder/output stuttered, then froze for a long moment, maybe 0.5 seconds. That's unacceptable.
                                    In a positive note, the camera's Pro mode contains many features, like setting Contrast, Shadow, Highlight, Saturation, Tint, all -10-10, as well as shutter settings 1/6000 - 10 (latter is less than 1/50), ISO 50-3200, control color temperature 2300-10000K...

                                      • ?
                                      • Anonymous
                                      • Lxm
                                      • 04 Feb 2024

                                      Anonymous, 04 Feb 2024Some observations after taking it out of storage: 1 I had ... moreOh, and there's something odd with this phone's RAM management. After opening only 5 apps or so, even the basic xmpp client, Conversations, "suspends" (white screen for about half a second). In simpler words you may or may not lose your position in apps often, and the browser may (will) close on its own.
                                      It has only 3575 MB RAM instead of 4096 as it should.

                                      Termux root htop: 183 tasks, 2395 thr, 3 running, 5 cores active (the others probably must toggle when they're required).
                                      Load average 14.80. For comparison my J7 Prime only has 5.16 and that one has 4 cores active!
                                      This means many somethings overstress the A51 CPU by almost 3 times its "strength"!
                                      (If you have 5 cores and load average is 5.00, it means your CPU is 100% exerted, as far as I understand. Each 1.0 increment is a core at technical 100%)
                                      (system_server using 200% cpu after turning the screen on, soon dips to 10% [blue: low priority threads, also eats 7% of ram in that brief period)

                                      Despite this the phone is not frozen all the time. But it may explain its poor performance. It's just not suited for android 10, 11 or whatever. 9611 should be recycled


                                      Ahhh i recalled when it had this brief "silence" (I haven't played a song yet to remember) every time it switched songs...

                                        • ?
                                        • Anonymous
                                        • Lxm
                                        • 04 Feb 2024

                                        Some observations after taking it out of storage:
                                        1 I had not used it since November 2021. The weather was last checked in September 2022. That's almost 1.5 years of sitting unused. ChatGPT was not public at the time, what a change, to give an example!

                                        2. AccuBattery reported the battery is 3890 mAh, not 4000 per specs. It has 33 battery cycles (run cat /sys/class/power_supply/battery/battery_cycle in termux).
                                        There's a file in that folder containing the exact battery unit's name, how cool...
                                        AccuBattery could report more details, for example, stating the OS version (a string it reads containing the kernel, if it's custom), the charge polarity, a high value I did not understand, and the refresh rate of 0.4 seconds.

                                        3. When I booted it up it got hot (battery at 32.5C), but later it cooled down, specially after deleting some ancient big apps I no longer use.

                                        4. I had rooted it and flashed a custom kernel (PrishKernel, likely outdated/deprecated by now), to control its CPU and overheating. KernelAdiutor (not a typo) only let me switch to a couple governors, like the `underclocking` one, else it crashed or did nothing. Maybe it's the kernel.

                                        5. Its battery is poor. It lost 7% in 39 minutes just doing nothing, a xmpp app open and little else. When it has +1000 it will be fried and probably need an AOSP ROM to survive.
                                        Charges quickly though.
                                        But what's the point if when it has +1000 cycles it will discharge quickly too...

                                        6. I had disabled google apps, but not GMS (sidenote: if you do so the Google menu in Settings fades away smoothly!). I forgot why, hehe...

                                        7. I downloaded Roblox to test its gaming performance. It lagged in a simple game (most games look very unintensive graphically speaking), but then it stabilized more. It was slighly choppy and there were some lag bursts. I opened a buy item menu, and it had 2 microstutters while drawing the buy robux white bar. That's horrendous. It also got very hot. Its gpu has 3 cores for crying out loud!!

                                        If it lags on Roblox, it can't play anything else. It probably lags on Minecraft too, how terrible...

                                        8. The UI was smooth.

                                        9. Camera was good. Display very nice. Vivid color great. Macro camera is extraordinary, but I say that because I had not actually used it and now I see why it's useful.

                                        All of this on a Vietnamese CSC, one of the first Android 11 stock builds there were for the device. I had flashed a GSI years ago, but I rolled back because I had no CF.Lumen (super screen color app, can make it all red!) support, and the speaker was way quieter.