Category Archives: Phone and Tablet

Using Lightning-to-USB-Adapter to copy photo from USB drive to iPhone/iPad

03-apple-lightning-to-usb-camera-adapter

Using Lightning-To-USB Adapter to copy images from USB Flash Drive to iPhone/iPad:

  • Requirement:
    • All image files need to put in a folder name: DCIM
    • Image files must have a filename with exactly 8 characters long (no spaces) plus the file extension (i.e., my-movie.mov; DSCN0164.jpg).
  • How to copy file:
    • If connected iPhone/iPad sees the flash drive, it’ll open all photos in thumbnails. You cannot view more than thumbnails off the drive. To see them bigger, you must import them.
    • Select to import few photo or import all photos.
    • Once you import, pay attention to the dialogue boxes because it’ll offer to delete the photos from the flash drive for you.
    • (You can not export photo from iPhone to flash drive).

 

Hàng vạn lái xe có nguy cơ bị tước giấy phép vì… 3G tăng giá (10/2013)

10/2013

Chiều 23.10, Hiệp hội Vận tải ôtô Việt Nam đã có văn bản số 097/HHVT-TV kêu cứu gửi Bộ GTVT và các ngành chức năng trước nguy cơ hàng nghìn DN, hàng vạn lái xe có thể bị phạt với hình thức cao nhất là tước GPLX; bởi giá cước 3G tăng đã vô hiệu hóa các thiết bị giám sát hành trình.
Công văn của hiệp hội nêu rõ: “Theo Nghị định 91, các doanh nghiệp vận tải đã lắp đặt và khai thác sử dụng thiết bị giám sát hành trình để báo cáo tình hình hoạt động phương tiện cho các sở giao thông vận tải và Tổng cục Đường bộ.
Mỗi TBGSHT đều phải sử dụng 1 SIM thuê bao di động để truyền phát dữ liệu về máy chủ. Song từ ngày 16.10.2013, TCty Viễn thông Quân đội (Viettel) đã thực hiện việc điều chỉnh giá cước với cách tính cước tăng “nhảy vọt” gấp nhiều lần, dẫn đến hàng vạn TBGSHT ngừng hoạt động do không truyền phát dữ liệu về máy chủ được.
Hiệp hội phân tích: Trong khi các thiết bị truy cập mạng di động phổ biến hiện nay như smartphone, máy tính bảng, USB 3G… có phiên truyền tin lớn với lưu lượng từ vài chục KB đến hàng MB và sử dụng băng thông lớn (2.5G, 2.75G, 3G) thì hầu hết các TBGSHT có đặc điểm khác biệt là: Truyền tin ở tốc độ thấp với tần suất truyền định kỳ từ 5-60 giây/bản tin, mỗi bản tin dung lượng rất nhỏ cỡ ~ 64-256 byte với yêu cầu tốc độ truyền thấp thường chỉ vào khoảng dưới vài chục Kb/s.
Với đặc điểm truyền tin dung lượng thấp nêu trên, hầu hết các TBGSHT hiện nay đều sử dụng các gói cước Laptop40, Mi10, đặc biệt phổ biến gói Mi10 và Laptop Easy với mức cước hằng tháng từ 10.000đ/tháng đến 40.000đ/tháng. Song từ ngày 16.10.2013, Viettel đã điều chỉnh giá cước theo chiều hướng tăng quá cao.
Cụ thể: Đối với thuê bao Dcom: 200đ/MB (trước 16.10.2013 là: 60đ/MB), tăng 333% cước phí. Đối với thuê bao di động (gói Mi): 25đ/50KB (trước 16.10.2013 là: 2,5đ/10KB) tăng 20 lần cước phí đồng thời điều chỉnh block tính cước: 50KB + 50KB thay cho 10KB+10KB. Chính việc điều chỉnh cách tính cước này đã gây ra sự gia tăng hơn hàng trăm lần lưu lượng truyền phát so với trước đây (vì mỗi lần truyền phát dữ liệu cho dù chỉ 0.1KB cũng bị làm tròn thành 50KB), làm cho các SIM thuê bao nhanh chóng hết tiền, dẫn đến TBGSHT ngừng hoạt động trên diện rộng.
Cũng theo hiệp hội: Tính đến ngày 21.10.2013, đã có hàng vạn TBGSHT mất tín hiệu bởi tài khoản thuê bao hết tiền, hàng ngàn doanh nghiệp vận tải đứng trước nguy cơ mất kiểm soát phương tiện và bị rút phép kinh doanh vận tải vì TBGSHT không truyền phát dữ liệu theo Nghị định 91, hàng vạn lái xe nguy cơ bị phạt, tước giấy phép lái xe 30 ngày và phạt 2,5 triệu đồng theo Nghị định 71.
Trước những vấn đề nêu trên, Hiệp hội Vận tải ôtô Việt Nam kiến nghị Viettel áp dụng cách tính cước đúng theo lưu lượng truyền tin thực tế (không tính theo block) đối với các gói cước nói trên để các doanh nghiệp vận tải không bị trả “oan” cước tăng vọt làm đội chi phí đầu vào, ảnh hưởng đến sức cạnh tranh của vận tải ôtô, kiến nghị Bộ GTVT và Bộ Công an không xử phạt các xe bị ngừng TBGSHT vì hết tiền cước thuê bao.
Điều đáng lo ngại hơn cả là việc thay đổi cách tính cước đã vô hiệu hóa chủ trương giám sát tốc độ xe nhằm kiềm chế TNGT, vì vậy hiệp hội kiến nghị Viettel hãy hỗ trợ các DN vận tải vượt qua khó khăn trong giai đoạn hiện nay bằng việc giữ nguyên cách tính cước cho các TBGSHT.
Phó Thủ tướng yêu cầu kiểm tra tăng giá cước 3G. Sau khi dư luận phản ánh 3 DN viễn thông di động VinaPhone, MobiFone và Viettel đồng loạt tăng giá cước dịch vụ 3G vào ngày 16.10.2013, có dấu hiệu vi phạm Luật Cạnh tranh, Phó Thủ tướng Hoàng Trung Hải đã yêu cầu Bộ Công Thương chỉ đạo cơ quan quản lý cạnh tranh khẩn trương kiểm tra. Nếu có dấu hiệu lạm dụng vị trí thống lĩnh thị trường, vi phạm pháp luật về cạnh tranh thì tiến hành điều tra, xử lý theo đúng quy định của pháp luật và báo cáo Thủ tướng Chính phủ kết quả thực hiện.

Source: http://m.go.vn/news/kinh-te/tin-1547588/hang-van-lai-xe-co-nguy-co-bi-tuoc-giay-phep-vi-3g-tang-gia.htm

My iPhone Won’t Turn On. Help!

By , About.com Guide

When you’re faced with an iPhone that won’t turn on, you may think your iPhone is broken and that you’re going to need to buy a new one. That could be true if the problem is bad enough, but there are a lot of things you can try to fix your iPhone before you decide it’s completely dead.

If your iPhone won’t turn on, try these tips to bring it back to life.

Turn It On/Restart It

This seems silly, I know, but if you iPhone won’t turn on, the first thing you should do is check to make sure that it’s not off. To do this, just hold down the Hold button at the top right corner on the edge of the phone for a few seconds. If the phone is off, it should turn on. If it’s on, you may get the slider that lets you turn it off.

If it was off, let it boot up. If it was on, restarting it by turning it off and then turning it back on is probably a good idea.

Press the Hold and Home Buttons

If your iPhone wasn’t turned off or won’t restart, try this instead: hold down the Hold button and the Home button on the bottom center of the front of the iPhone at the same time. Hold them both for at least 10 seconds (there’s nothing wrong with holding for 20 or 30 seconds, either, though if nothing has happened at that point, it probably won’t). In many cases, the silver Apple logo will appear and the phone will boot up.

Charge Your Phone

Again, this may seem obvious, but it’s actually pretty common. If your iPhone’s battery runs very far down, the iPhone won’t turn on. That’s because it’s using its remaining battery life to preserve your data and settings.

So, your iPhone could be refusing to turn on because its battery doesn’t have enough juice. In that case, plug your iPhone into a wall charger or into your computer (plug it directly into the computer; some USB ports on keyboards don’t have enough power to charge iPhones). Let it sit for 10-20 minutes. If it was low on battery and needed a charge, when it’s got enough juice to power the screen, it will turn on and show you its charging status, starting with the red battery icon.

If you suspect your phone ran out of battery but this technique doesn’t work, it’s possible that your charger or cable is faulty. Try using another charger or cable and see if things change.

During this process, you may also want to make sure there’s no lint packed into your cable or the iPhone’s dock connector. This isn’t a hugely common problem, but a lot of pocket lint could interfere with the iPhone getting a charge.

Restore to Factory Settings

If those options don’t work, sometimes your best bet is to restore your iPhone to its factory settings. This erases all the data and settings on your phone (hopefully you synced it recently and backed up your data), but it can solve a lot of problems. Normally, you can just sync your iPhone and click the Restore button in iTunes, but if it won’t turn on, you need a different technique:

  1. Plug the iPhone’s USB cable into the dock connector, but not into your computer
  2. Hold down the iPhone’s Home button
  3. Now plug the other end of the USB cable into your computer
  4. This will open iTunes, put the iPhone into recovery mode, and let you completely restore the iPhone.

DFU Mode

In some rare circumstances, the issue might not be so much that your iPhone won’t turn on as that it won’t boot up properly. This often takes the form of the phone trying to start, getting to the silver Apple logo, and then restarting itself. This is most common after jailbreaking or when trying to install an iOS update without enough battery life.

If you’re facing this problem, try putting your phone into DFU mode and resetting it.

Proximity Sensor Problem

Another rare circumstance that can cause a problem with some iPhones is a malfunction in the proximity sensor that turns the iPhone’s screen on and off when you hold it up to your face to make a call. This malfunction can cause the screen to be turned off even when the phone is on and not near your face.

If you’re facing this issue, it can usually be solved through software, rather than repairing or replacing the phone. In this case, hold down the Home and Hold buttons as outlined above to restart the phone. When it restarts, the screen should be working. If it is do the following:

  1. Tap the Settings app
  2. Tap General
  3. Tap Reset
  4. Tap Reset All Settings. This erases all your preferences and settings on the iPhone, but won’t delete your data.
  5. Confirm the reset. This should resolve the proximity sensor problem.

Source: http://ipod.about.com/od/iphonetroubleshooting/qt/My-Iphone-Wont-Turn-On-Help.htm

Up ROM JellyBean 4.1.1 for Galaxy Tab 7 (P1000)

[ROM][JB 4.1.1][GSM/CDMA] AOKP SGT7 – JELLYBEAN (latest: 06/10/2012)

AOKP SGT7
*** JELLYBEAN EDITION ***Android Open Kang Project (AOKP)
for Samsung Galaxy Tab (GSM/CDMA)

<< AOKP SGT7 website >>:: : [ FACEBOOK ] :: [ TWITTER ] :: [ GOOGLE+ ] :: [ GITHUB ] :: [ GOO.IM ] : ::

:: : [ ICS BUILD THREAD ] : ::

Quote:
*** READ THIS FIRST POST BEFORE DOWNLOADING OR POSTING IN THIS THREAD ***
Quote:
[ :: DISCLAIMER :: ]

this rom is a BETA, it is NOT complete. it will definitely have bugs or things that don’t work the way they should. FLASHING THIS IS AT YOUR OWN RISK!!! i take no responsibility for any damage flashing this rom may cause to your tablet, computer, family members, pets, the environment, or the planet. remember, by downloading this rom and flashing it on your tablet, you accept that it may not work as it should.

this rom is based on the SGT7 TE4M’s device and vendor files, therefore anything not working in the official CM10 builds, won’t work on this (and some things that do may not even work).

*** WARNING!!! ***THE BUILDS OF AOKP SGT7 JELLYBEAN COME WITH A NEW PARTITION LAYOUT WHICH IS DIFFERENT TO THE ICS RELEASES – IF YOU WISH TO RETURN TO ICS FOR ANY REASON YOU NEED TO RESTOCK YOUR TABLET!!! (same goes for going back to Gingerbread)

Quote:
this rom is not official, it means that you wont find it on AOKP’s download pages, you wont find it on their github, and you wont get any help asking them about this build. it is not supported by TeamKang (creators of AOKP), and may never be. do not attempt to download any of the roms on their website / forums and flash them on to a GalaxyTab. downloading roms built for other devices will cause you great heartache and either turn your tablet into an expensive brick, or you will have to restock / reflash your tablet.furthermore – it seems TeamKang have dropped support for the CDMA variant of the GalaxyTab for their JB builds – this is now one of the only releases of AOKP you will find for ANY of the “OG” GalaxyTabs. you can still download an official release of AOKP for the CDMA variants for ICS – THIS IS NOT THIS ROM
YOU HAVE BEEN WARNED!
Quote:
[ :: BUGS / KNOWN ISSUES :: ]

of course, being a beta there is bugs. first and foremost, i will say it again, this build of AOKP is based on the SGT7 TE4M’s device, vendor and kernels, therefore: ANYTHING THAT DOESNT WORK ON CM10 WILL NOT WORK ON THIS BUILD EITHER!

during my testing of AOKP features i have noticed the following bugs:

  • Vibrations menu in ROMControl will Force Close (FC) ROMControl, so far its not working but i have left it there to work on getting it going
  • Battery Bar does not work in Tablet UI (won’t show up no matter what you set it to)
  • If you change the clock to centered on Hybrid Mode, then the clock will not show up in the notification area in Tablet UI – make sure you change it back to Right if you change to Tablet UI
  • (not really a bug?) Toggles will not show in Tablet UI unless you click on the clock area.
  • Holding down the Home Button to get to the Navbar Ring will cause the Recents Menu to appear
  • Sliders on the Perfomance Menu for changing clock speed are terribly unresponsive (can take many clicks / long clicks to get it to change) – but they do work.

and some more device/rom based bugs:

  • USB Tether is not working, so it has been disabled in Toggles – it will not work if you attempt to enable it in Settings.

this as i said is a beta, and each person that flashes this is in a way a tester… 

so you think you have found a bug in AOKP SGT7? – thats great! (well, not really but at least its a step closer to it being potentially fixed!) 

here is what you do:

Quote:
[ :: SCREENSHOTS / VIDEOS :: ]

here is a few screenshots of AOKP SGT7 – Jellybean Edition in action on my tablet:

Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-17-25-56.jpg<br /> Views:	1874<br /> Size:	18.6 KB<br /> ID:	1380981Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-17-26-20.jpg<br /> Views:	1824<br /> Size:	17.2 KB<br /> ID:	1380983Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-17-26-52.jpg<br /> Views:	1857<br /> Size:	28.8 KB<br /> ID:	1380984Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-17-27-17.jpg<br /> Views:	1783<br /> Size:	38.3 KB<br /> ID:	1380985Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-17-27-26.jpg<br /> Views:	1638<br /> Size:	15.7 KB<br /> ID:	1380991Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-17-53-08.jpg<br /> Views:	1573<br /> Size:	19.1 KB<br /> ID:	1380992Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-17-53-18.jpg<br /> Views:	1543<br /> Size:	20.0 KB<br /> ID:	1380993Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-17-56-32.jpg<br /> Views:	1512<br /> Size:	18.4 KB<br /> ID:	1380994Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-17-57-17.jpg<br /> Views:	1408<br /> Size:	18.3 KB<br /> ID:	1381000Click image for larger version</p> <p>Name:	Screenshot_2012-10-06-18-13-01.jpg<br /> Views:	1387<br /> Size:	21.2 KB<br /> ID:	1381001

Quote:
[ :: DOWNLOADS :: ]

with the release of JB, i have decided to change from basing my build’s around the AOKP official “builds” / “milestones”. each release will now be date stamped (as well as each kernel) in the following format: YYYYMMDD – i.e. the first build is “aokp_sgt7-p1-jb_20121006” – thats a p1 (GT-P1000) build released on 06/10/2012.

this means that the builds i release won’t neccesarily match up to the official builds – check the changelog for the official build it was released around. releases may occur either more than once between official builds, or may skip a few official builds.

*** ALL JELLYBEAN DOWNLOADS HAVE THE NEW BLUE LOGOS AS SEEN ON THE FIRST POST ABOVE ***

BUILDS :: http://aokp.sgt7.net/downloads/aokp-…egory/4-builds

KERNELS :: http://aokp.sgt7.net/downloads/aokp-…gory/5-kernels

GAPPS :: (26/07/2012) – [ :: DOWNLOAD :: ]

gapps links are hosted on goo.im, check out http://goo.im/gapps/ for latest gapps package (download the CyanogenMod 10.x version)

SOURCE :: http://github.com/stimpz0r

Quote:
[ :: INSTALLATION :: ]

FOR ALL VARIANTS ::

  • copy the rom onto your SD card or internal memory
  • reboot in to ClockworkMod Recovery
  • go to wipe menu
  • select “wipe data / factory reset” from the main menu and “wipe dalvik cache” from the “advanced” menu ** MAKE SURE YOU DO THIS BEFORE INSTALLING THE ROM **
  • READ ME :: if this is your first installation of JB (i.e. you are coming from ICS) you will get a status 7 error and a message that flashing this will wipe your data – IT SHOULD NOT AFFECT YOUR INTERNAL/EXTERNAL SDCARD (but don’t quote me on that) – to confirm you understand this you will need to select the rom again.
  • after a few seconds, the tablet will reboot and MAY (if you have just upgraded to MTD) go into a bootloop. you will see a CWM recovery screen flash up, then boot cycle. hold down the vol up key as soon as you see it power cycle and it should go back to recovery (if this doesn’t work then hold the power button for 10 seconds to turn it off, and turn it back on while holding both power + volume up – when you see the Samsung logo let go of the power button while still holding volume up).
  • go to install -> choose from either internal / external sd card -> navigate and select the zip file
  • after a few seconds, the tablet will reboot and go into a bootloop (you will see a CWM recovery screen flash up). hold down the vol up key and it should go back to recovery.
  • again, go to install -> choose from either internal / external sd card -> navigate and select the zip file for the rom
  • do the same as above for gapps (google apps)
  • reboot

IF YOU ARE PLANNING ON GOING BACK TO AN ICS BUILD OF AOKP, OR ANY OTHER ICS ROMS ROMS YOU MUST DO THE FOLLOWING:

you need to restock and install a custom kernel with CWM 5+ before attempting to install the MTD based rom. restocking and installing Overcome (or at the very least the Overcome Kernel) on the P1000 is necessary to ensure that there are no problems with the conversion to MTD (restock ensures a clean system and partitions, flashing overcome’s kernel gives us an updated CWM recovery which is needed to flash an MTD rom), and the last thing anyone wants is for their tab to fail and become bricked. read the link above to further explain MTD; what it is and what its benefits are. for the end user its not a big noticable change, but the possibilities it opens make it very worthwhile.

FOLLOW THE RESTOCKING STEPS FOR YOUR DEVICE, THEN FOLLOW THE “FOR ALL VARIANTS” STEPS BELOW

FOR P1000 (GSM) ONLY ::

FOR ALL OVERCOME FILES AND GUIDES PLEASE GO HERE (thanks to sos_sifou): XDA :: [ROM][2.3.6] Overcome Rom 4.1.0 new links

follow Team Overcomes excellent installation guide all the way for going back to Gingerbread.

if you are going back to ICS follow the guide up to the flashing of the Overcome Kernel and rebooting, but as soon as you reboot then you go straight to CWM recovery (hold power + volume up)

FOR P1000L (GSM) ONLY ::

NEED TO FILL THIS IN! research first before flashing!!!

FOR P1000N (GSM) ONLY ::

NEED TO FILL THIS IN! research first before flashing!!!

FOR SCH-I800 / SPH-P100 (CDMA) ONLY ::

here is a good tutorial for going from stock to CM9 on the CDMA variants:

[HOLY CRAP][SPRINT P100] Stock to ICS – Complete Walkthrough

you don’t need to install build 7 at the end of the above guide, but once you have done installing build #5, follow the guide below to get to AOKP SGT7.

*** WARNING ***IF YOU DO NOT FOLLOW THESE INSTRUCTIONS TO THE LETTER YOU MAY CAUSE DAMAGE TO YOUR TABLET!

i will not be held responsible for any damage you cause by not doing as you have been told. this is your only warning. any complaints about something going wrong because you haven’t followed these to the letter WILL BE IGNORED.

if you are already on an MTD based rom, follow the instructions i gave under the FOR ALL VARIANTS section (you do not need to restock everytime you install a new MTD based rom), and you should be fine (it wont reboot/bootloop the first time you flash if you are already on MTD), you may not even need to wipe data / dalvik cache if its from a previous MTD build of AOKP, but if you are having problems, it is the first thing you should do.

Quote:
[ :: CHANGELOG :: ]

AOKP SGT7 :: CHANGELOG

BUILD DATE :: 06/10/2012
AOKP OFFICIAL BUILD :: Build #4

INITIAL JELLYBEAN BUILD – CHANGES ::

+ NEW: AOKP SGT7 Kernel Logo / Bootanimation / Default Wallpaper / SGT7Walls / DeskClock ported over to JB
+ NEW: included Apollo / Trebuchet (sbradymobile edition) / P1Parts from SGT7 CM builds – Capacitive button control lives in P1Parts from here on in.
+ NEW: HumberOS JB kernel included for GSM builds (not for CDMA!) – 5 CPU governors from ICS also included on top of the usual ones included with HumberOS kernels
* FIXED: voltage control fixed again – works as it should (i hope!)
* FIXED: give system.radio permission to modify /dev/alarm (allows users to set the clock) – again. 
* REMOVED: Apex Launcher will now no longer be included with AOKP SGT7 builds

BUGS ::

* Vibrations menu in ROMControl will Force Close (FC) ROMControl, so far its not working but i have left it there to work on getting it going
* Battery Bar does not work in Tablet UI (won’t show up no matter what you set it to)
* If you change the clock to centered on Hybrid Mode, then the clock will not show up in the notification area in Tablet UI – make sure you change it back to Right if you change to Tablet UI
* (not really a bug?) Toggles will not show in Tablet UI unless you click on the clock area.
* Holding down the Home Button to get to the Navbar Ring will cause the Recents Menu to appear
* Sliders on the Perfomance Menu for changing clock speed are terribly unresponsive (can take many clicks / long clicks to get it to change) – but they do work.

Stabilize tablet battery

For all of you having battery troubles, try this (example  Galaxy TAB):

http://forum.xda-developers.com/show…postcount=1491

– Leave TAB powered off, and charging from a low power (500mA) USB Port overnight
– Open your TAB (Google it. Only do this if you’re comfortable opening up your TAB)
– Disconnect the battery from the mainboard. Leave it disconnected for about 5 minutes. (Dont worry, you won’t lose any information)
– Press the buttons several times
– Reconnect battery to board, close TAB, Power on.
– Let the TAB discharge completely through normal use. Recharge completely again while off (using low power USB port), reset battery counter.

you should notice the battery stabilizing after 3 or 4 complete charge/recharge cycles.

[Samsung Galaxy Tab 7″] Hướng dẫn cài đặt-root 2.3.3 bản VN chính hãng

Lưu ý đây là bản P1000DXJPC dùng cho ĐÔNG NAM Á, có Tiếng Việt, tất nhiên là SSVN sẽ phải bh!

Cảm nhận là dùng mượt, ít hao pin, sạc nhanh, sóng khỏe, máy mát (<35*C). Nói chung mình cảm nhận dùng tốt nhất trong các bản 2.3.3 cho Galaxy tab! Dùng tốt nên mình giới thiệu mọi người cùng dùng, mình sẽ lưu bản này dài dài trên máy trước khi flash 1 bản nào đó nếu hay hơn, hehe…

Đầu tiên là flash firmware sử dụng ODIN 1.7

1. Download:
ODIN 1.7: http://forum.xda-developers.com/atta…7&d=1293165218
Firmware P1000DXJPC : http://hotfile.com/dl/120112727/77ed…DXJPC.rar.html
File PIT: http://forum.xda-developers.com/atta…5&d=1305119861
File dbdata: http://forum.xda-developers.com/atta…6&d=1305119870
2. Flash:
-Chạy ODIN !
– Flash file firmware .tar (giải nén file rar trên được file tar), sử dụng file PIT ở trên. Nhớ chọn REPARTION ENABLE
– Sau khi flash, tắt máy, vào lại DOWNLOAD MODE lần nữa.
– Flash file dbdata.tar trong mục PDA, lần này bỏ chọn REPARTION
– tắt máy, vào recovery mode
– Wipe cache
– Wipe data / factory reset
– Xong

Source: http://www.tinhte.vn/thay-doi-nang-cap-firmware-457/samsung-galaxy-tab-7-0-huong-dan-cai-dat-root-2-3-3-ban-vn-chinh-hang-723470/