Old Q&A-Thread - This Thread will be split into multiple KB-Thread soon

webdude12

Senior Member
Jun 22, 2007
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Sorry you have had to send it back for a refund.
I was hoping keylo would have replaced it for you, as a goodwill gesture, but guess not. :(
Its all good. First time I have every had to use the AMX Buyer's protection. I must say Im very impressed with this process. I called them explained the situation. They said not a problem, especially with it within 30 days or receiving the item. They told me to box everything up, emailed me a call tag from UPS, and asked if I wanted UPS to pick it up or I could drop it off. With my work schedule, I elected to drop it off. They told me once I dropped it off, to go on my account and marked the item as shipped in the portal. I did that, 45 seconds later I got an email saying a credit for the whole purchase amount had been applied to my account.

Like I said I will considering ordering one from Keylo at a later date. I want there to be some track record proven that this is not an ongoing problem, and to see where the developers get on breaking the bootloader. I have on good knowledge that the bootloader has been unlocked on another unit, the guy that did it though is waiting for more testing and an easier software tool to apply it before releasing. Even this this unit has better features, the ability to do custom roms might way sway my decision on what to purchase.
 

pakidermo5000

Senior Member
Nov 13, 2011
342
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Its all good. First time I have every had to use the AMX Buyer's protection. I must say Im very impressed with this process. I called them explained the situation. They said not a problem, especially with it within 30 days or receiving the item. They told me to box everything up, emailed me a call tag from UPS, and asked if I wanted UPS to pick it up or I could drop it off. With my work schedule, I elected to drop it off. They told me once I dropped it off, to go on my account and marked the item as shipped in the portal. I did that, 45 seconds later I got an email saying a credit for the whole purchase amount had been applied to my account.

Like I said I will considering ordering one from Keylo at a later date. I want there to be some track record proven that this is not an ongoing problem, and to see where the developers get on breaking the bootloader. I have on good knowledge that the bootloader has been unlocked on another unit, the guy that did it though is waiting for more testing and an easier software tool to apply it before releasing. Even this this unit has better features, the ability to do custom roms might way sway my decision on what to purchase.
It is a pitty that you are not interested in it anymore. You got root so quickly..., I had a great expectation on unlocking the bootloader and getting full control on the unit. I am not really good at cracking bootloaders (never done it) but might try something if I knew how.

I am not an expert on Android, but I have some notions of programming and Linux. I am not afraid of doing harware mods either, if that is necessary to get a hot usb connection to the unit.

Could you give us some hints/links on how to do progress with the bootloader ?

cheers.
 

pakidermo5000

Senior Member
Nov 13, 2011
342
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It is a pitty that you are not interested in it anymore. You got root so quickly..., I had a great expectation on unlocking the bootloader and getting full control on the unit. I am not really good at cracking bootloaders (never done it) but might try something if I knew how.

I am not an expert on Android, but I have some notions of programming and Linux. I am not afraid of doing harware mods either, if that is necessary to get a hot usb connection to the unit.

Could you give us some hints/links on how to do progress with the bootloader ?

cheers.
Can this be a good starting point ??

https://gist.github.com/sarg/5028505
 

webdude12

Senior Member
Jun 22, 2007
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Can this be a good starting point ??

https://gist.github.com/sarg/5028505
Its not that Im not interested in the radio anymore, I just cant do much without having a unit to test with. I have never cracked a bootloader myself, but I have played with encrypted software on other hardware before. The thing about encryption on "standard" hardware is, at sometime during the process, the code has to be un-encrypted to run.

To put it in simple terms, If I want to give you instructions, I can not come upto you and give you instructions in German, without either you knowning German, or providing a translator for you. Well the hardware does not know German, which means its translating itself before copying itself to ram to be run.

So somehow the ram has to be dumped at so the raw code can be reviewed and either look for a security hole or be able to be re-written and re-flashed to the unit. The link you posted, it looks like he is writing a way to dump the ram to hex code. This hex code then needs to be translated into Assembly language opcodes for the rockchip. This is what I was having trouble finding from just quick google searches.

Once you can dump our boot.img and opcodes can be found thats where the fun would be begin.
 

pakidermo5000

Senior Member
Nov 13, 2011
342
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Its not that Im not interested in the radio anymore, I just cant do much without having a unit to test with. I have never cracked a bootloader myself, but I have played with encrypted software on other hardware before. The thing about encryption on "standard" hardware is, at sometime during the process, the code has to be un-encrypted to run.

To put it in simple terms, If I want to give you instructions, I can not come upto you and give you instructions in German, without either you knowning German, or providing a translator for you. Well the hardware does not know German, which means its translating itself before copying itself to ram to be run.

So somehow the ram has to be dumped at so the raw code can be reviewed and either look for a security hole or be able to be re-written and re-flashed to the unit. The link you posted, it looks like he is writing a way to dump the ram to hex code. This hex code then needs to be translated into Assembly language opcodes for the rockchip. This is what I was having trouble finding from just quick google searches.

Once you can dump our boot.img and opcodes can be found thats where the fun would be begin.
Ok. Iam busy this weekend but next week i will try to get the boot.img using the method on the link. Are the files provided by keylo of any use in this sense?
 

kevinnku20

New member
Apr 11, 2011
2
1
0
Webdude and all,

One of the things I notice from your picture is that the black cloth tape did not seem to be applied to those connections. I have another Chinese unit that's windows CE which I am replacing with this one. The CE unit is pretty good quality and the manufacturer has an excellent track record and warranty but they do not sell android units. In that unit, they taped everything with the cloth electrical tape, and I'm wondering if it was to mitigate this sort of problem. When I get mine (at some point.. because they are backlogged) if it's not there, I was thinking to adding some of the cloth tape for reinforcement before installing it into the car. My guess is the adhesive failed on your connectors because they had a bad batch but used them anyway. Taping them down real good with tape that is rated for outdoor electrical use should prevent that from happening, even if the adhesive fails on the connector.

Granted, we should not have to do this; but having a background in professionally sourcing electronic components from China, I know they cut any corner they can. It does not surprise me that they asked you to glue it back down, that's typical. Many of these manufacturers have little to no quality control and there are zero consumer protections like there are in the states. You were smart to use your Amex for this which brings up another point for others to consider when buying something like this.

The group I bought from (I believe it is the same manufacturer that Kei Lo works for) was really pressuring me into paypal, or to wire transfer funds rather than using Alibaba's escrow service. If you are not using an AMEX, DO NOT DO THAT. Paypal only protects purchases that are not as described for E-bay purchases.Which means that even if they ship you a pair of dirty socks in place of the $500 radio you ordered, Paypal will not investigate a claim. Wire transfer is about the same as sending cash, and there is little recourse there as well. Likely you will get your item as described, but when/if problems come up like webdude's any other method of payment offers 0 protection. If you're like me and don't have access to Amex, Discover is your next best bet. I've also had really good luck with my Capital One card in these situations recently.

Sorry for hijacking the thread for that, but I thought it was important to point out.

Finally, Is there a way to update the original post with your experience, I had actually bought this unit before I got to page 19 when you started having problems. It probably wouldn't have stopped me from buying it anyway, but that sinking feeling in my gut after I saw your post before I saw the pictures was not fun :rolleyes:

Edit:

Never mind, I see that the first post was already updated with the black screen issue. My bad, I shot from the hip after a few days absence.
 
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blankers

Senior Member
Jul 8, 2007
107
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Swansea
The group I bought from (I believe it is the same manufacturer that Kei Lo works for) was really pressuring me into paypal, or to wire transfer funds rather than using Alibaba's escrow service. If you are not using an AMEX, DO NOT DO THAT. Paypal only protects purchases that are not as described for E-bay purchases.Which means that even if they ship you a pair of dirty socks in place of the $500 radio you ordered, Paypal will not investigate a claim. Wire transfer is about the same as sending cash, and there is little recourse there as well. Likely you will get your item as described, but when/if problems come up like webdude's any other method of payment offers 0 protection. If you're like me and don't have access to Amex, Discover is your next best bet. I've also had really good luck with my Capital One card in these situations recently.

Sorry for hijacking the thread for that, but I thought it was important to point out.
.
Hi, there, and welcome to the thread.
We are happy for you to join in the discussion on these units. We are a friendly bunch and welcome any contribution you can make.
I have had my unit for 3 weeks now and am still very happy with it. I have not had chance to open it up yet and check this connector issue, but will do soon and will post the result.

I ,for one, have not heard of Discover...is it a type of credit card, or a service from someone ? Maybe you can tell us more.
 
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webdude12

Senior Member
Jun 22, 2007
217
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I highly suggest you use a credit card like AMX, Discover, Capital One that gives you either buyer protection or extended warranty on your purchases. As far as the tape used, this is commonly called gaffer's tape. It's not cheap, but unlike some duct tape will not conduct electricity so therefore is safe to use on the circuit board
 

pakidermo5000

Senior Member
Nov 13, 2011
342
379
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Do not use the update file

DO NOT USE THE UPDATE FILE. IT IS FOR ANDROID 4.0, NOT 4.2.2

Hi, I just asked Keylo what was the file he/she sent me. After checking with the engineer, it turns out that the file is just a file to create an update SD card, but it is for the Android 4.0 unit, and not the 4.2.2. So, please do not use it.
 

Cruze2012

Member
Mar 28, 2014
30
5
0
Houston
Chev Cruze Model 7047

Dear all,

This is Keylo from Huifei(brand name).
Myself: 24-year-old. Wish to learn more from all of you. New in foreign trade business. Worked as Buyer at the past 3 years. Know Car DVD and accessories fairly well. Happy to be friend with you.
For my company:
We are a factory and manufacturer Car DVD from 2008. I guess most of you know our product from other foreign trade company. We have 4 platform: 776, ARM11 A4, MTK A9(new), Pure Android4.2.2.

Any confusion, do not hesitate to contact with me!

My email: [email protected]
Skype: Keylo1688
Thanks to Keylo and everyone who has contributed so far. I purchase a system from LSQStar and recieved this model 7047. Apparently they did not ship the USA version. I'm still having issues with the Canbus support, but they were able to send me a firmware update to fix SWC. However, my factory message screens in the instrument cluster above the steering wheel still have Chinese translation and would like to get back the English translation. None of the vehicle chimes or factory audible work either, including the rear parking assist beeps. Are these feature supported in the canbus setup and what can I do to correct it? I was able to access the factory settings with the 126 password and canbus is set to GM(Raise). The Radio was set to Russian and changing it to America 2 allows the statons to set to exact frequencies. Otherwise frequencies were off by up to .04 for FM and .08 for AM.

Thanks
 

ericpaulyoung

Member
Mar 17, 2014
19
0
0
Green Point is shipping me a new TFT board. Their service has been very fast and professional. Also, Keylo from HuiFei offered to get me a replacement board for cost if it is needed. Great customer service from both companies so far.

EPY
 

jereid

Member
Mar 15, 2014
7
2
0
Shipment Prepared

I just got notice that my unit is being packed for shipment and I'll be receiving tracking info the next couple of days. Four days ahead of promised schedule. I'll post shipping updates if there is interest in the details.

---------- Post added at 10:54 PM ---------- Previous post was at 10:49 PM ----------

Here is a picture of my broken clip....
Does it void warranty to open case to check the clip integrity?
 

Zaphod-Beeblebrox

Senior Member
Dec 3, 2009
1,426
862
0
Virginia
I've been chasing various typs of GPS/multi-media in my vehicles for years (as I suspect most anyone who is reading this thread has). I've got an ouko 6.2" that I liked, but it has resistive screen, and of course those units are a tad slow. I took it out and current have an Asteroid Classic matched to a LG 8.3 tablet mounted on a RAM Mount. However, I want to go back to a complete in-dash unit.

I've been chasing down a few variations, and this one looks promising. Can anyone point me towards a universal 2-din preferably with a 1024*600 screen and NO DVD Player (I prefer the largest screen possible and haven't used a DVD in years). I also prefer an actual volume knob, but that's not a deal killer.

Thanks
 

Orisai

Senior Member
Jun 13, 2013
134
18
0
Montevideo
I've been chasing various typs of GPS/multi-media in my vehicles for years (as I suspect most anyone who is reading this thread has). I've got an ouko 6.2" that I liked, but it has resistive screen, and of course those units are a tad slow. I took it out and current have an Asteroid Classic matched to a LG 8.3 tablet mounted on a RAM Mount. However, I want to go back to a complete in-dash unit.

I've been chasing down a few variations, and this one looks promising. Can anyone point me towards a universal 2-din preferably with a 1024*600 screen and NO DVD Player (I prefer the largest screen possible and haven't used a DVD in years). I also prefer an actual volume knob, but that's not a deal killer.

Thanks
What car do you have? Depending on your car's dashboard you could put an in-dash unit designed specifically for your car
 

sciallo

Senior Member
Oct 20, 2010
511
116
0
Uhmm, careful, that is a Toyota version. Way wider than standard 2 din. Nice it has a 8 inch screen, but will NOT fit standard 2 din opening...

---------- Post added at 12:13 PM ---------- Previous post was at 12:00 PM ----------

Here is some universals:
http://www.alibaba.com/product-detail/HuiFei-Universal-2-Din-Android-4_1684831223.html
http://www.alibaba.com/product-detail/Huifei-DIY-illumination-100-Android-4_1738227019.html
http://www.alibaba.com/product-detail/HuiFei-Pure-Android-4-2-2_1735529610.html
 
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