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> Ritmix RBK-420 | TFT color
Freedomf1ghter
Message#1
03.04.12, 11:24
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Meizu MX4 Pro

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DiscussionRitmix RBK-420
Discussion | Description | FAQ | Firmware "

Post has been editedFreedomf1ghter - 03.04.12, 11:27
yivannikov
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19.07.14, 21:32
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teXet TB-720HD

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People help.
While watching a movie on the device, TEXET TB-720HD, a spontaneous shutdown occurs, despite the fact that the battery level is full.
Who faced this chip, tell me the reason?
alpard
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02.04.16, 09:10
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I must say that it will be about Texet tb-720 HD.
So the problem is that it has run into Device Firmware Update (DFU) and does not want to continue working.
I decided to update the firmware, downloaded from the 2.8 site. I did everything according to the instructions.
Once in the program RK28Upgrade chose the Switch. The book went to DFU and was initially defined as vid_1f3a pid_efe8, but did not want to install drivers.
Removed vid_1f3a pid_efe8 and it no longer appears (
I tried 32-bit and 64-bit win 7 silence.
How to revive and in what sequence?
Posted in texet 740, from there sent here.

Thank you in advance

I downloaded the program firmware from rhythmics. Device not found. What cherished buttons to press so that it can again be seen by the system?

Post has been editedalpard - 02.04.16, 09:39


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vadeus
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02.04.16, 10:22
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Alpard @ 04/02/2016, 09:10*
How to revive and in what sequence?

TrySoChip 8600/9800 device firmware, in the cap the first spoiler, instructions for reviving.


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alpard
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05.04.16, 14:15
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Vadeus @ 04/02/2016, 10:22*
Try the firmware on the SoChip 8600/9800, in the first spoiler, instructions on how to revive.


Tried the first method did not help. But I did not dare to disassemble and close).

He lay down with me for 3 days, connected it to the PC and lo and behold! He decided on the screen and flashed connected via usb.
Oh, miracle!
But the experiment had to be completed, and the program was reopened from Ritmix, which said RK281 device was found. Further, everything about the instruction-pressed switch and again I can not install the driver.
I tried different. Writes, could not identify the device.
This device was stopped because it reported a problem. (Code 43).
Deleted the device, tried different drivers - all the same Unknown device.
Attached Image


Post has been editedvadeus - 12.04.16, 19:53
Reason for editing: spoiler


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alpard
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12.04.16, 17:04
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Hello.

As I said, the problem is not the firmware or not quite in the firmware. What happens is a book lie down, lie down, after it can be turned on, turned on. It should be charging.
And here options are possible: it is on charge, after 20 minutes it writes, the device is not recognized. Or if you removed it from charging, you turn on the book or movie and then a screen with stripes or dots appears.
Attached Image

What is it? Did Kirdyk come to him or did he still need to change the firmware?

Post has been editedvadeus - 12.04.16, 19:53
Reason for editing: spoiler


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porolon4ik
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27.04.16, 12:10
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Hello! The book has lain for a very long time without charging, now it does not turn on. When connected to charging no reaction. When connecting via PC to PC (Vista x32 OS), it tries to find drivers, but cannot find them.

What can be done apart from being attributed to the SC? Thanks in advance.
vadeus
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27.04.16, 12:39
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Porolon4ik @ 04/27/2016, 12:10*
What can be done apart from being attributed to the SC?

Replace the battery yourself.


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porolon4ik
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27.04.16, 13:12
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Huawei P20 Pro CLT-L29

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vadeus, it turns out that the battery could nadzhabitsya from a long stay in a discharged state? I found the driver, installed it, the book is defined as RK28. But the PC does not see its hard drive.

When you run the firmware in the log, it displays the following:

INFO: Test Device Start
ERROR: Test Device Fail
INFO: Upgrade End

Post has been editedporolon4ik - 27.04.16, 13:29
vadeus
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27.04.16, 13:29
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* porolon4ik,
The book was released 4 years ago, and even lay idle for a long time, the battery died. As a rule, in such crafts the battery is not very original.


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PocketBook 632/623/903,Onyx MK3, Kindle, NST / NSTwGL (CR), Sony T1 / 350
Phones: Siemens CX65>Qtek 2020i>Motorola l7>Mitac Mio A502>HTC Hero>Philips W732>SGS 5 Mini (LTE)>SGS 6>SGS9.
PDA: HP iPAQ hx2110>Gpad g11>Nexus 7 3G>SGT Pro 8.4 LTE + SGT S 10.5 (wi-fi).
porolon4ik
Message#31
27.04.16, 13:57
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vadeus, I'm confused by the fact that the drive in the PC explorer does not display the drive of this book, or is it also because of the failure of the battery?
vadeus
Message#32
27.04.16, 14:19
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* porolon4ik,
Yes.


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Phones: Siemens CX65>Qtek 2020i>Motorola l7>Mitac Mio A502>HTC Hero>Philips W732>SGS 5 Mini (LTE)>SGS 6>SGS9.
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alex2zz
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20.06.16, 18:34
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Samsung Galaxy S8 Exynos

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Tell me, can I connect a USB flash drive via a otg cable?
Max-xaM
Message#34
21.07.17, 11:41
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Broke the screen, only half I see, the rest "flowed."
Where to buy a screen?
If the forum has owners with a live screen, but a dead battery, then I will buy for parts.
sa3000
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29.10.17, 15:30
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Asus ZenFone Max ZC550KL (MSM8939)

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rbk 420 display

Buy and replace yourself, it's easy. Or look towards buying a new book.
sa3000
Message#36
30.10.17, 10:23
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Nobody put a more capacious battery, as there is a place.
Attached Image

M
Rules section of e-books:
7. When adding screenshots to a message, remove the images in the spoilerHow to clean the image under the spoiler.


Post has been editedvadeus - 31.10.17, 13:41
korsar34
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02.04.18, 10:30
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porolon4ik @ 04/27/16, 12:10*
Hello! The book has lain for a very long time without charging, now it does not turn on. When connected to charging no reaction. When connecting via PC to PC (Vista x32 OS), it tries to find drivers, but cannot find them.

What can be done apart from being attributed to the SC? Thanks in advance.


unsolder Akum, pick up Akum for charging to the same "frog". As a rule, with a deep discharge, standard means cannot charge Akum. If during a short period of time Akum does not begin to take charge, you remove from charging and check the presence of voltage on Akum with a tester, we throw out Akum and pick up a new one.
Sish
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14.01.19, 09:24
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Good day to all!

When starting the device I see this:
Attached Image


Touchscreen hello?

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