JXD S7800B Tablet HD Rockchip 3188 IPS LCD Capacitive TouchScreen ROM 16Gb Game Console Unlock Rooted Android 4 Free Retrogaming

Rewritten 20/11/2014 and revised on 5/12/2014, originally one star but increasing to three. I hoped this would be the one portable device for retro-gaming that wasn't fundamentally flawed in some way; took a punt based on the number of reviews that said how awesome this thing was. I was a bit shocked to find the device's refresh rate was 66 Hz (rather than 60 Hz) meaning all of the emulators had vsync issues (really choppy scrolling in other words, Sonic the Hedgehog isn't so smooth when the game can't keep up with the screen). I wrote my original negative review based on this, but have since discovered it is a kernel bug in more recent versions of the device's firmware (my device shipped with S7800-01-V1.5-20140605.111625) and supposedly fixable. However, my device also has the following major issues:* Seems incompatible with my Virgin Media Super Hub wifi router. Data rate is incredibly slow and seems to impact other wireless devices. I have never had a single wifi problem with any other device on this network. Some users have reported dodgy soldering on the wifi antenna as the cause.* Stalls when downloading / installing apps from Google Play store. This renders the device unable to perform any transactions via Google Play until it is power-cycled. This is not connected with the wifi problem, but can occur simultaneously. Update: this appears to be caused by the updated Gmail app, which doesn't appear to work with the device. Uninstalling the update and de-selecting the automatic update option seems to fix this.* Charging is via the (supplied) A/C adaptor and not USB. I like the convenience of Android devices all using the same charger, so this is a shame.* No Bluetooth.I intended to return the device but as it was shipped from China, it would cost me a fair chunk of what I paid for it in postage. I decided to keep it and experiment with other firmwares, managing to flash it with an older revision. This fixed the refresh rate but introduced a new bug, where the device does a hard reset when you flick the power button once (i.e. to turn off the screen). Update: this is because my device is a 2014 model and older firmwares are not 100% compatible, introducing this bug. Flashing with the original V1.5-20140605.111625 firmware and applying the following kernel patch (Google "s7800 lujji kernel only" to find this) fixed everything apart from the wifi:3.0.36+lujji@linux-server #7Tue Oct 21 04:21:53 FET 2014With the 60 Hz refresh rate the emulators run beautifully as expected. The controller is very nice to use and the overall retro-gaming experience is about as good as I could have hoped for. In the future, I hope JXD might release a firmware update that fixes everything without having to use non-standard flash tools and hacked kernels.If I could fix the wifi problem it would be worth four stars; would be five but I have already spent a fair bit of time flashing and re-flashing the device before I had a tablet that was worth keeping. I can see why some users gave it five stars; theirs probably worked perfectly out-of-the-box. Its low cost might excuse some of its lack of refinement and with the 66 Hz bug fixed it makes an amazing handheld console.

unbelievable that this cost me £125! excellent build quality and screen is really sharp.i put in a 8gb sd card (cost about £10) and have stored 100's of snes , megadrive , ps1 and n64 games- all of which run perfectly.downloading the emulators and Roms is really easy (even for a technophobe like me !).Battery life is good - i can get about 6 -7 hours gaming on a charge. I only use it for gaming but it is far better value than 3ds and vita etc.very surprised at the build quality as we here all these bad things about china. It really looks and feels like a premium product

If you are the kind of person who expects perfection, then this device is probably not for you. After a bit of research, I was a bit worried about quality issues but the temptation of being able to play retro games on a 7in screen made me take the plunge and order one of these intriguing bits of kit. I opted for the free delivery option and was pleased that the package arrived on the third day after I placed the order.The tablet itself is not bad in terms of build quality. Mine exhibits a little bit of flex from the back cover making a slight creaking sound, but I have had big name mobiles which were worse.The only real issue. I have is an occasional buzz from the left speaker, but this is intermittent and doesn't last for more than a minute or so.My research revealed that many buyers were worried about the quality of the charger which is unconveniently, not micro usb. When charging mine, I carefully monitored progress and the charger only got very slightly warm. It did take a few hours to fully charge though.Display quality is great. Only a couple of games are pre-loaded. The vast array of games apparently available when you launch the weirdly named "Happy Chick" app, are merely links to the manufacturer's web site, but selecting the link is straightforward and downloading is simply a case of tapping the confirmation button. Downloads did seem a bit slow though.The only emulators I have tried so far are the PSP, GBC and GBA emus. The PSP is a bit disappointing with choppy framerates and poor audio. The GBA and GBC emulators work brilliantly. Just watch out for which version you select as navigating menus in Japanese is near impossible unless you know the language.Overall I am happy with my purchase, so far, but I feel that if someone like Asus or Samsung built an equivalent device (i.e. full physical game controls) for £200 or so, I would buy one in a heartbeat.