Okay, we’ve just taken notice that the Samsung Galaxy Grand Duos has scored a Marshmallow update of its own too, albeit unofficially, as a AOSP custom ROM. As hours pass by, we’re seeing Android builds drop for one Android device after another. Today only, we saw Marshmallow update in the form of a custom ROM for Sony Xperia Z1, Z Ultra and Z1 compact. We also are pretty close to OnePlus One Marshmallow update ROM, and we’re expecting — mainly, hoping — for more devices to get Marshmallow ROM love pretty soon. Anyway, of all devices that have received the Marshmallow Custom ROMs so far, the Grand Duos is the cheapest them all. And Grand Duos getting the ROM tells that the developer community is quite reliable — oh yes, that accounts most only if this ROM gets fixed over time and becomes good enough of a daily driver. Bugs! Attention please!! The ROM is in alpha stage of development right now, and well, is not a daily driver at all. Far from it, actually. Here’s why first up, network isn’t working at all, meaning no calls, no sms, nothing. Next, Dual-SIM functionality is lost too. And there are other you could find below. For what it’s worth, Wi-Fi, Bluetooth, seem to be working, along with camera, audio, video, etc. → Check out this page for latest on what’s working, and what’s not. Downloads Marshmallow custom ROM — Link Download Mirror File MB Google Apps Gapps — Link Supported devices Samsung Galaxy Grand Duos, model no. GT-i9082 Don’t try this on any other device than the one having model no. specified above. Use the Droid Info app, to determine the codename of your Galaxy Grand Duos. If it is exactly the one specified above, then it should be compatible with the custom ROM we have here. Warning! Warranty may be void of your device if you follow the procedures given on this page. You only are responsible for your device. We won’t be liable if any damage occurs to your device and/or its components. Backup! Backup important files stored on your device before proceeding with the steps below, so that in case something goes wrong you’ll have backup of all your important files. How to Install Required You will need to have TWRP recovery installed on your device to be able to install Marshmallow custom ROM and Google Apps Gapps. Check out our page on Galaxy Grand Duos TWRP recovery for this. Step 1. Download the Marshmallow ROM and gapps file from above. Step 2. Connect your device to PC and transfer the ROM and gapps file to it. Disconnect the device then. Remember the location of the files. Step 3. Boot your Galaxy Grand Duos into recovery mode. If you are rooted, you can use Quick Boot app from play store. To manually boot into recovery mode, do this Power off your device and wait for 5-10 seconds until the device is fully switched off. Press and hold Volume up + Home + Power button together and release them only when you see Samsung’s logo. You will enter recovery mode soon, and should see TWRP recovery. If you see 3e recovery, then you need to install TWRP recovery for this linked above. Step 4. [Optional] Once in TWRP, create a backup of your device. Tap on Backup, and then select all the partitions for back. Now do the swipe action at bottom to start creating a backup for emergency cases. This backup is really a lifesaver! Step 5. Do a Factory Reset. On TWRP’s main screen, tap on Wipe, then advanced wipe, and now make sure you have selected these partitions dalvik cache, data, system and cache. Then do the Swipe action at bottom to confirm it. Step 6. Now, install the ROM file. On TWRP’s homescreen, tap on Install, and then locate the ROM file and tap on it. Then do the Swipe action at bottom to begin flashing the update. Step 7. Tap on Home button to go back. Now, install the Gapps the same way you installed Marshmallow ROM on your Galaxy Grand Duos. Step 8. When it’s done, tap on Reboot system button to restart the device. That’s it. BTW, if you face force closes on apps, or Google Play services error, then install the ROM as said above again, but do not flash Gapps for now. Need help? Let us know if you need any help with this via comments below.

The Galaxy Grand DUOS is a new high-end DUOS smartphone from Samsung that was launched about a month ago. The phone sports 5” LCD display with a resolution of 480 X 800 screen, dual-core processor, 8 megapixel back camera, 2 megapixel front camera, and 3G, Wi-Fi. It was released with Android Jelly Bean out of the box. The phone was released to provide a competent high-end dual SIM phone in the Asian markets where such phones have a great demand. Samsung has now started the Android Jelly Bean firmware update roll out for the Galaxy Grand DUOS GT-I9082. The update should now be available to the users of this phone in Russia and India and will be pushed to other countries in phases. To upgrade your phone to the Android Jelly Bean firmware, check Samsung Kies Kies -> Select Tools -> Select Firmware Upgrade and Initialization -> Enter Model, or from device Settings,> About> Software the available firmware are for the international version of the Galaxy Grand DUOS GT-I9082, and therefore they can be installed on any phone that is not carrier branded, irrespective of country and and Install Those who have not got the update yet, can download the firmware from the link below and install it manually using the Odin firmware flasher. How to Install Official Firmware on Galaxy Grand DUOS Download the firmware from the link above and unzip it. Download Odin flasher for Galaxy Grand Download and install either Samsung Kies or USB Drivers on your computer. If you have installed Kies, make sure it is not open while flashing the firmware. Boot your device into Download Mode Volume Down+Home+Power keys. The next screen will prompt you to press the Volume Up key to proceed to the Download mode see below. Now double click on the Odin3 file to run the Odin3 flasher program. Connect you phone to your computer via USB cable. You should see the IDCOM port at Odin3 turn Blue and “Added” text at the Message box below. This shows that your phone has been detected by Odin3. Make sure that only the “Auto Reboot” and “F. Reset Time” options are checked on the Odin. Now click on the PDA button and select the firmware file with . extension. Click on the Start button and and let Odin do its job. The installation will begin and will not take much time. When it is finished, you would see “PASS!” message on IDCOM port with green background. Your phone should reboot automatically. Disconnect your device from the computer. Enjoy the newly installed Android Jelly Bean firmware on your Samsung Galaxy Grand DUOS GT-I9082 and do not forget to share ith us how it went for you. Also Read How to Root Samsung Galaxy Grand Duos How to take Screenshot on Samsung Galaxy Grand Reader Interactions

CUSTOM ROM INFO Name CyanogenMod 11 unofficial Nightlies Android Update Android KitKat Launched in Dec 5 by Google Is this official? No. Stability Good enough for daily use. Dual SIM not working and some minor gaffles Credits pawitp, CM Team Known Issues/Bugs quoted [As of December 11, 2013.] Only the primary SIM slot works HW Composer not used in landscape Bad animation when switching between portrait landscape screenrecord does not work FM Radio does not work you can use SpiritFM, but I’m not providing support for any problem SMS to premium number results in force close No anti-banding setting in Camera “?” battery stat when not plugged in on boot Audio artifacts when UI click sound is enabled Camera Panorama Let’s see how to install the latest CM 11 nightly on your Galaxy Grand Duos GT-I9082/GT-I9082L. WARNING! Warranty may be void of your device if you follow the procedures given on this page. You only are responsible for your device. We won’t be liable if any damage occurs to your device and/or its components. CHECK DEVICE MODEL NO. To make sure your device is eligible with this, you must first confirm its model no. in About device’ option under Settings. Another way to confirm model no. is by looking for it on the packaging box of your device. It must be GT-I9082/GT-I9082L! Please know that this page is meant only for Samsung Galaxy Grand Duos, model no. GT-I9082/GT-I9082L. Please DO NOT try the procedures given here on other variants of the Galaxy Grand Duos GT-I9080/GT-I9080L,Also do not use the procedures discussed here on any other Galaxy device or any other company. You have been warned! BEFORE YOU BEGIN.. You must do this pre-installation stuff before attempting to install the ROM on your Galaxy Grand Duos in order to avoid any complications later, and have a smooth and successful process. IMP! MAKE SURE YOU ARE ON ANDROID UPDATE FROM SAMSUNG This ROM will only boot if install it over stock ROM from Samsung. If your Grand Duos is still on Android which it came with, kindly update to stock before installing this update. ► GET ANDROID UPDATE FOR GALAXY GRAND DUOS HERE GET CLOCKWORKMOD CWM RECOVERY Use the link below to download and install the latest and working CWM recovery for your Galaxy Grand Duos. You need this CWM recovery to be able to install the Android KitKat ROM like CM11. Older versions of CWM and TWRP recovery may give error in installation. ► CLOCKWORKMOD CWM RECOVERY FOR GALAXY GRAND DUOS BACK UP YOUR DEVICE Back up important data and stuff before you start playing around here as there are chances you might lose your apps and app-data app settings, game progress, etc., and in rare case, files on the internal memory, too. For help on Backup and Restore, check out our exclusive page on that linked right below. ► ANDROID BACK UP AND RESTORE GUIDE APPS AND TIPS CHARGE YOUR DEVICE If your android device powers off due to lack of battery while the process is underway, it could damage the device. So, make sure your device is adequately charged — at least 50% battery of the device. EXAMPLE VIDEO If you haven’t used a custom recovery, either CWM or TWRP, before, to install a .zip file of a ROM on anything else, then we suggest you first watch a video of that, given right below, to get familiar with the process. Just fyi, the video below shows installing a .zip file of recovery on Galaxy S3 Yes, not Grand Duos, but it doesn’t matter as the process remains exactly same. So, once you are finished with video, jump to downloads and step-by-step guide below. GALAXY Grand Duos GT-I9082/GT-I9082L ANDROID KITKAT ROM Before we head to downloads and installation guide, let us just remind you that your Galaxy Grand needs to be running on Android before you install this Android based CM11 ROM. If you have not updated your Grand and are still on Android then the CM11 ROM might not boot after installation. DOWNLOADS Download the files given below and transfer them to a separate folder on your phone and remember the location. GAPPS FILE Download Link File name MB ROM FILE Galaxy Grand Duos Download Link File name MB For latest version of the ROM available, you can check out the original page here. Reminder Before you proceed, make sure you’ve transferred the files you downloaded above to a separate folder on your Galaxy Grand Duos STEP-BY-STEP GUIDE Make sure you have backed up your phone adequately including important data stored on internal memory. NOTE Older versions of both CWM and TWRP recoveries are not working with Android based ROMs, throwing installation errors and even WiFi bugs on some phones, therefore you need to use the latest version of either recovery. We believe CWM and above are working fine with Android ROMs. Make sure you have got latest CWM recovery installed on your Galaxy Grand Duos. If you need help on that, find the link for working CWM recovery for Galaxy Grand in the “before you begin..” section above. GUIDE FOR CWM RECOVERY USERS Boot into recovery mode. For this Power off your device and wait for 5-10 seconds until the device is fully switched off. Press and hold Volume Up + Home + Power buttons together and release them as soon as you see the Galaxy Grand Duos logo. └ In Recovery mode, use Volume buttons to navigate Up and Down between options and use Power button to select an option. Create a Nandroid Backup from recovery. It’s optional but very important to do, so that in case something goes wrong you can restore to current status easily. For making a Nandroid Backup, go to Backup And Restore » Backup. Perform a Factory Reset This will delete all apps and their settings and game progress. For this Select Wipe data/Factory reset, then select Yes on the next screen to confirm factory reset screenshot Also perform a System Format, Go to Mounts and storage, select format /system, then select Yes on the next screen to confirm system format First Install the ROM file Select Install zip » Choose zip from sdcard or external sdcard, you know where your files are » browse to the location where you saved the file and select the ROM file Now similarly flash the Gapps file. └ Make sure to first flash the ROM file and then the Gapps file. Reboot your device. For this, go back to the main menu of recovery and select reboot system now. That’s all. Your phone will now reboot and it will take some time as it’ll be phone’s first boot after installing CM 11 ROM, be extremely excited for this! Note In case your device gets bootloop stuck at logo while rebooting, just do a factory reset step 3 and you will be fine. FEEDBACK US! It was easy to install the latest CM 11 ROM KitKat right? Let us know how it tastes to you. Your suggestions and queries, if any, are most welcomed!

Home GT-I9082 Released 2013, January 162g, thickness Android up to TouchWiz UI 8GB storage, microSDXC Samsung Galaxy Grand Duos was announced at 2012, December. Released 2013, January with Android Jelly Bean, upgradable to Jelly Bean, TouchWiz UI, It have 8GB 1GB RAM storage and there are colors Black, White NETWORK 2G GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 3G HSDPA 850 / 1900 / 2100 - SIM 1 only Speed HSPA Mbps TIMELINE Announced 2012, December. Released 2013, January Released Released 2013, January BODY Dimensions x x mm x x in Build Glass front, plastic back, plastic frame SIM Dual SIM Mini-SIM, dual stand-by DISPLAY Size inches, cm2 ~ screen-to-body ratio Resolution 480 x 800 pixels, 53 ratio ~187 ppi density PLATFORM OS Android Jelly Bean, upgradable to Jelly Bean, TouchWiz UI CPU Dual-core GHz Cortex-A9 GPU Broadcom VideoCore IV MEMORY Card slot microSDXC dedicated slot COMMUNICATES WLAN Wi-Fi a/b/g/n, dual-band, hotspot, DLNA Bluetooth A2DP, EDR, LE GPS Yes, with A-GPS, GLONASS Radio Stereo FM radio, RDS FEATURES Sensors Accelerometer, gyro, proximity, compass BATTERY Battery Li-Ion 2100 mAh, removable MISC SAR US W/kg head W/kg body SAR EU W/kg head W/kg body Specs source Disclaimer. We can not guarantee that the information on this page is 100% correct We are working hard to figure it out You can request or contribute combination for this model to Telegram group 1. Extract unzip the Samsung firmware file. Recommended using WinRAR or 7-Zip 2. Download Odin Tool 3. Extract Odin ZIP file 4. Open Odin execute file 5. Reboot Samsung phone in Download Mode hold Home + Power + Volume Down buttons / hold Volume Down + Bixby buttons then plug-in cable 6. Connect you Samsung phone and wait until you get a blue sign in Odin 7. Add the 1 file Samsung firmware to AP/PDA or 4 files Samsung firmware AP/BL/CP/CSC to it's slots 8. Make sure re-partition is NOT ticked 9. Click the START button, sit back and wait few minutes

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