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I bought an MHL adapter from amazon and i connected it to my tv and it doesn`t work. I connected it to power, Ive rebooted my phone several times and still couldn't get it to work.
Any suggestions?
Sent from my SGH-T989 using xda premium
hmmm if everything is plugged in.. it should be detected right away... could it be a rom or kernel issue? undervolted kernel might cause problems because welll not enough volts obviously. a couple weeks back using faux kernel.. i couldn't use anything below -25 volts to keep a steady display.
I've had the same problem running non stock roms and kernels. My buddy has a stock SGS2 tried it worked, tried mine nothing. Try going back to stock or at least a stock rom. I just ordered my MHL adapter and are currently running Mr. X stock rom with darkside kernel, when i get my shipment ill report back. Hope this helps.
S...
Ive tried going back to the stock rom but had no luck.
My tv seems to recognize that something is plugged in, it just wont display properly. I reset the settings on my tv but that didnt work either. Hmmmm
Sent from my SGH-T989 using xda premium
As simple as turning on & off the tv.
I bought a cheap mlh adapter and a cheap hdmi cable from ebay and had neither the phone or the tv recognize each other. The solution was to plug in the power to the mlh adapter first, then plug it into the phone second; then turn the TV on with it switched to the correct hdmi source and finally, plug the hdmi cable into the mlh adapter. But sometimes I still have to sleep(standby screen) the phone and wake it before it work even with this method. I tried plugging and unplugging these components a few different ways but this was the one that work for me and has continued to work every time. Hope this helps.
Try plugging everything in, then rebooting your phone while it's hooked up to your tv.
Ive tried everything i can think of. Mabey the adapter is bad.
Sent from my SGH-T989 using xda premium
mattbradfo said:
Ive tried everything i can think of. Mabey the adapter is bad.
Sent from my SGH-T989 using xda premium
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get the monoprice adapter, good and inexpensive.. unless you got it from there.. probably bad adapter lol
Easy to check
I would try plugging the power cord into the mlh adapter then into your phone, if you get power to the phone it might suggest that your hdmi cable is the culprit. If you get power to your sgs2 then I would try switching out the hdmi cable with another to rule out the cable as the bad egg. If both the mlh adapter and the cable test good then one last test would be to switching out which hdmi port you are using by changing the cable to another hdmi port. The last check is unlikely but I am just trying to cover all the bases.
This is just my two cents but sending back products tend to increase cost and adds up quickly. I tend to try every available avenue before returning products. The comment about Monoprice selling this adapter is right on, as this where i got mine for dirt cheap. Good luck with what ever you decide.
need any and all the help i can
I have a samsung galaxy s infuse 4g ... and a sony brava tv... i have bought 2 mhl adapters and 2 hdmi cables .. hooked them up in as many orders as possible as well as turning the phone off and on but still nothing does anyone have any sugestions to help make this work ???
Sounds crazy but if all else fails.
You could use the og adapter. I found on samsungs website http://www.samsung.com/us/mobile/cell-phones-accessories/EIA2UHUNBEGSTA
And i check if your phone the Infuse was compatible which it is. Last ditch effort take the phone and the adapters to your retail store and see if they can get them to work. Sorry, if these suggestions are not better than my above comments, but I can't think of any other measures to try. Hope you get the problem solved.
bassdemon said:
I have a samsung galaxy s infuse 4g ... and a sony brava tv... i have bought 2 mhl adapters and 2 hdmi cables .. hooked them up in as many orders as possible as well as turning the phone off and on but still nothing does anyone have any sugestions to help make this work ???
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Did you plug power into the adapter? It needs a power source, so plug your charger into the side of it ...
Yes i hooked it up the same way as the youtube video and i also called samsung tech suport and they said that what i was doing it should work...do you think my luck is that bad that i bought 2 faulty mhl adapters??
bassdemon said:
Yes i hooked it up the same way as the youtube video and i also called samsung tech suport and they said that what i was doing it should work...do you think my luck is that bad that i bought 2 faulty mhl adapters??
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Have you tried a different HDMI cable? Or a different TV or Input on that TV?
I have a sneeking suspision that the 2 mhl adapters that i bought are junk possibly.. Does anyone think that it could be because my phone is from rogers (canada) or would they be the same thing as he usa version ?? Because i have noticed that on youtube of the unboxing of my model phone it has a mhl suplied in the box..
Hey thankyou for your sugestions but im having a hard time finding the Samsung mhl adapter in Canada apparently we dont get in im the box with the phone because of some law... Do you think the American website would send to Canada?
Mine did not come with an MHL and I am in the states, I found one on ebay ....
The 2 i have now are from ebay and dont work.. Is yours a actual Samsung one?
bassdemon said:
Hey thankyou for your sugestions but im having a hard time finding the Samsung mhl adapter in Canada apparently we dont get in im the box with the phone because of some law... Do you think the American website would send to Canada?
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here is the samsung one on ebay that i bought and it works fine. search this item number on ebay. 110821159886
Hi. So I found this cable for the Note on eBay.
It seems a good item because it doesn't require the adapter or external power. Has anyone tried it, or is it more worth while to go for the original adapter? TIA
Gigarant said:
Hi. So I found this cable for the Note on eBay.
It seems a good item because it doesn't require the adapter or external power. Has anyone tried it, or is it more worth while to go for the original adapter? TIA
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I'm not sure why you'd want one without the usb cable for power though, cuz if you're outputting your display to your TV then it's going to drain a lot of power.
Unless you only want to show say a picture, or a short video it might be okay, but if you want to output say a whole movie, you're going to want to provide your phone with power at some point.
I've recommended an mhl cable in the past. It might suit you if you're looking for a nice, compact cable with hdmi and usb (for power).
But if you're dead against one with a power cable then feel free to give your linked one a try and report your findings.
little-vince said:
I'm not sure why you'd want one without the usb cable for power though, cuz if you're outputting your display to your TV then it's going to drain a lot of power...
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Yeah, but i got the impression it would draw power from the TV by itself. I may be wrong about that...its not that I'm dead against a cable that needs power, more that I'm thinking about portability and something to add a bit more value should I ever sell the Note. And admittedly for the last one a genuine OEM adapter would be the best option, but they are gorram expensive.
Considering I have to buy an HDMI cable for my laptop, I might try a generic adapter, see how that works, and then try this cable if I have the spare cash in the future.
Hi,
So I have an update for this; recently I bought one of the cables as above out of curiosity, and surprise surprise... It didn't work. When I connected the Note to the TV with it, it just flashed up 'USB connected' and then 'USB not connected' in the status bar. This is because of the obvious reason; that you need a conventional adapter with a USB-connection for external power. Also, the seller of this cable claimed that the TV in question needs to be MHL (not just HDMI) compatible for it to work. So essesntially you do in fact need a conventional Samsung (or generic copy) 5-pin HDMI adapter to get your Note's display on your TV.
I think that resolves the question. Oh, one more thing: you need a TW-based ROM for HDMI connection. Don't forget...
I recently bought a mini usb to HDMI adaptor (model number ET-H10FAU) from eBay and it seems to only work on my note 10.1 2014 edition when I'm using a power source (A mini usb cable to a plugged in ac adaptor.) Is this normal or is there something wrong with the adaptor? I was hoping that I could use the adaptor without such a power source.
Mugenakuma said:
I recently bought a mini usb to HDMI adaptor (model number ET-H10FAU) from eBay and it seems to only work on my note 10.1 2014 edition when I'm using a power source (A mini usb cable to a plugged in ac adaptor.) Is this normal or is there something wrong with the adaptor? I was hoping that I could use the adaptor without such a power source.
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Click to collapse
I have ordered a 5 pin to 11 pin converter so i can use the MHL adpter I have with the new Note 10.1. I have used this MHL adapter with several phones and all required the power to be plugged it for it to work. The best way around this is with a Miracast receiver to mirror the device wirelessly. I bought the Rocketfish one from Best Buy a couple of months ago when it was on sale for $29.99.
Mugenakuma said:
I recently bought a mini usb to HDMI adaptor (model number ET-H10FAU) from eBay and it seems to only work on my note 10.1 2014 edition when I'm using a power source (A mini usb cable to a plugged in ac adaptor.) Is this normal or is there something wrong with the adaptor? I was hoping that I could use the adaptor without such a power source.
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Click to collapse
I believe the official Samsung mhl adaptor 2.0 is the only one that can do it without a power source but using hdmi output drains battery so much that it's still better to plug it in
Sent from my SCH-I545 using Tapatalk
ChrisNee1988 said:
I believe the official Samsung mhl adaptor 2.0 is the only one that can do it without a power source but using hdmi output drains battery so much that it's still better to plug it in
Sent from my SCH-I545 using Tapatalk
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Thanks for the info. So far it's not a deal breaker that I have to use a power source for the adapter. Just wanted to make sure it was normal.
nrage23 said:
I have ordered a 5 pin to 11 pin converter so i can use the MHL adpter I have with the new Note 10.1. I have used this MHL adapter with several phones and all required the power to be plugged it for it to work. The best way around this is with a Miracast receiver to mirror the device wirelessly. I bought the Rocketfish one from Best Buy a couple of months ago when it was on sale for $29.99.
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Can anyone confirm whether or not you can connect to hdmi without a ext power source?
Sent from my GT-I9300 using xda app-developers app
DeBoX said:
Can anyone confirm whether or not you can connect to hdmi without a ext power source?
Sent from my GT-I9300 using xda app-developers app
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According to Rocketfish's website, and the documentation about the device (It's on the link below) you don't need an external power source since the tablet connects to the device by way of a wireless connection. It does say that the device requires an HDTV with a USB port though, something my old cruddy HDTV I still have in my bedroom does not have (I would be using this device mostly upstairs.). Nevertheless I confirmed that if your tv doesn't have a USB port then you can use an AC adaptor to power the device. This Rocketfish device seems to be perfect. Having to use all these cables to connect my tablet to a tv is a real pain...
http://www.rocketfishproducts.com/products/home-theater/RF-WFD301.html
DeBoX said:
Can anyone confirm whether or not you can connect to hdmi without a ext power source?
Sent from my GT-I9300 using xda app-developers app
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The Monoprice MHL adapter I have will not work on any device without external power hooked up to it. If you are using screen mirroring/ miracast for wireless display then you do not need power hooked up. The Rocketfish MiraCast receiver I have does require USB power while plugged into a TV's HDMI slot to function. Most TV's have a usb port for attaching a thumb drive or doing firmware updates and this will power the receiver. Hope this helps.
---------- Post added at 09:25 AM ---------- Previous post was at 09:10 AM ----------
Mugenakuma said:
According to Rocketfish's website, and the documentation about the device (It's on the link below) you don't need an external power source since the tablet connects to the device by way of a wireless connection. It does say that the device requires an HDTV with a USB port though, something my old cruddy HDTV I still have in my bedroom does not have (I would be using this device mostly upstairs.). Nevertheless I confirmed that if your tv doesn't have a USB port then you can use an AC adaptor to power the device. This Rocketfish device seems to be perfect. Having to use all these cables to connect my tablet to a tv is a real pain...
http://www.rocketfishproducts.com/products/home-theater/RF-WFD301.html
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Click to collapse
You can use a usb wall adapter for the usb power. Mine came with the small device, a short HDMI ext. cable, and the microusb power cable in the box. I have used several devices with the Miracast receiver. Be aware that most devices will require you to press the WPS button on the receiver the first time you connect it. I have used a Nexus 10, Nexus 7 (2013), Nvidia Shield, and a HTC Droid DNA with it and all work well. The Shield only required me to use the PIN number shown on the TV screen to connect, all the others required me to press the WPS button on the receiver to connect the first time. After connecting the first time all you have to go into settings on the android device to connect. You can move the receiver to a different TV and still reconnect without pressing the WPS button again. The only time you should have to repair the device is if you factory reset or install a different rom on the android device. Sorry for the long response just trying to give as much information as I know to help with your decision.
DeBoX said:
Can anyone confirm whether or not you can connect to hdmi without a ext power source?
Sent from my GT-I9300 using xda app-developers app
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Not sure if you were asking about the Rocketfish one specifically...
I bought the OEM MHL 2.0 adapter on Amazon and can confirm that you can indeed connect to HDMI without any power source.
confirmation
I don't need the power cord plugged in on mine but I do need the 5 to 11 pin adapter in the micro usb port of the tablet to get it connected to my tv.
does any one know if this will work?
http://www.amazon.com/Cable-Matters...9542&sr=8-1&keywords=samsung+galaxy+note+hdmi
john10101 said:
does any one know if this will work?
http://www.amazon.com/Cable-Matters...9542&sr=8-1&keywords=samsung+galaxy+note+hdmi
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It should people have said the Note II compatible MHL adapters will work.
I bought one off of ebay
I bought the one below from ebay from seller nj-store and I can connect it with and without the power cord; However, it will it disconnect it by itself every 5-10 minutes regardless of whether or not it has the power connected. Has anyone tried the original Samsung MHL 2.0? If so does it require the power and also does it charge the Note while the power is connected? Cause the one I bought off of ebay does not charge the Note when the power is connected. I seen some original Samsung MHL 2.0 connectors on amazon like for $16.99 but most people think they received the MHL 1.0 because it requires power. Thanks.
amadeus303 said:
Not sure if you were asking about the Rocketfish one specifically...
I bought the OEM MHL 2.0 adapter on Amazon and can confirm that you can indeed connect to HDMI without any power source.
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Was referring to the miracast one, but good to know non the less. Thx!
Kimo49 said:
I bought the one below from ebay from seller nj-store and I can connect it with and without the power cord; However, it will it disconnect it by itself every 5-10 minutes regardless of whether or not it has the power connected. Has anyone tried the original Samsung MHL 2.0? If so does it require the power and also does it charge the Note while the power is connected? Cause the one I bought off of ebay does not charge the Note when the power is connected. I seen some original Samsung MHL 2.0 connectors on amazon like for $16.99 but most people think they received the MHL 1.0 because it requires power. Thanks.
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Click to collapse
I have the original Samsung MHL 2.0. I bought it on Amazon *from* Amazon. I paid more for it, but I wanted to ensure I was getting the genuine product... I've read a few reviews where people were getting the 1.0 (or worse yet, fakes) when buying from 3rd party sellers.
It does not require power to connect my Note II phone or Note 10.1 2014 tablet to a monitor or TV. When I do connect power, it charges both devices.
Thank for letting me know. Do you happen to have the link to the Amazon one? All I find is third parties and fulfilled by amazon. Thanks.
I just went to my Amazon account and clicked on my orders to get you a direct link... Amazon must now be out of stock on them. All I see are 3rd party vendors at the moment.
amadeus303 said:
I just went to my Amazon account and clicked on my orders to get you a direct link... Amazon must now be out of stock on them. All I see are 3rd party vendors at the moment.
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Can you post the model number of your adapter. I have gotten one suppose to be original and the model number is ET H10FAUWEGWW per the box, but the adapter itself does not have a model number but just a serial number and it says it is made in Korea. It does have this number on it KFC RE SEC ET H10FAUWE which I don't know what it is. The reason for my question is that it works well but it does not charge my note when my power adapter is attached to it. Thanks.
Kimo49 said:
Can you post the model number of your adapter. I have gotten one suppose to be original and the model number is ET H10FAUWEGWW per the box, but the adapter itself does not have a model number but just a serial number and it says it is made in Korea. It does have this number on it KFC RE SEC ET H10FAUWE which I don't know what it is. The reason for my question is that it works well but it does not charge my note when my power adapter is attached to it. Thanks.
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Click to collapse
I'm traveling on business at the moment, so I don't have the box on me to confirm. However, I do know that the model number is ET-H10FAUWESTA - not the one you listed. I *can* confirm again that it does charge my devices as I'm currently using them in my hotel room.
amadeus303 said:
I'm traveling on business at the moment, so I don't have the box on me to confirm. However, I do know that the model number is ET-H10FAUWESTA - not the one you listed. I *can* confirm again that it does charge my devices as I'm currently using them in my hotel room.
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Click to collapse
Thanks for the reply. I will return the item and wait for Samsung or an authorize retailer to carry them. I have had too much bad luck buying from 3rd parties.
amadeus303 said:
I'm traveling on business at the moment, so I don't have the box on me to confirm. However, I do know that the model number is ET-H10FAUWESTA - not the one you listed. I *can* confirm again that it does charge my devices as I'm currently using them in my hotel room.
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Click to collapse
Just wanted to make sure about this adapter being able to charge the Note 2014 edition. I tried it on a galaxy S3 and S4 and it charge both but not the Galaxy Note 10.1 2014. It must need more power I guess cause I was using the Note 2014 edition original charger. Have you tried on the note 2014 edition?
hello all,
i want to purchase a usb hub, but with user opinions on the device.
what is the best usb hub to use with the fire tv? something incredibly fast and affordable(not over 70$)
you can provide links for me to check them out
There are USB hubs that cost $70?! Are they made by Monster?
I bought the Amazon Basics USB 3.0 hub for like 15 bucks and it has been quick and rock solid.
laidbackcloud said:
you can provide links for me to check them out
Click to expand...
Click to collapse
I'm using this one for $7: http://www.amazon.com/AmazonBasics-4-Port-USB-2-0-Ultra-Mini/dp/B003M0NURK to support a Flirc and a Logitech Unifying receiver.
jpeg42 is referring to this one (I think): http://www.amazon.com/gp/product/B00DQFGH80
IMO, depending on your usage, both are overkill. I also tested two others, from the extremely cheap ($0.99 at the checkout register of Walgreens) and a 10-port glitz-n-bling. They all work. I would suggest that if you're going to use more than four device get the one jpeg42 is using because it's powered externally. Some people have reported troubles with other self-powered hubs.
And I agree, for $70, it better be a really good one.
wellersl said:
I'm using this one for $7: http://www.amazon.com/AmazonBasics-4-Port-USB-2-0-Ultra-Mini/dp/B003M0NURK to support a Flirc and a Logitech Unifying receiver.
jpeg42 is referring to this one (I think): http://www.amazon.com/gp/product/B00DQFGH80
IMO, depending on your usage, both are overkill. I also tested two others, from the extremely cheap ($0.99 at the checkout register of Walgreens) and a 10-port glitz-n-bling. They all work. I would suggest that if you're going to use more than four device get the one jpeg42 is using because it's powered externally. Some people have reported troubles with other self-powered hubs.
And I agree, for $70, it better be a really good one.
Click to expand...
Click to collapse
I got the playstation USB 3.0 hub that walmart sells, so far its working for my development testing.
jpeg42 said:
There are USB hubs that cost $70?! Are they made by Monster?
I bought the Amazon Basics USB 3.0 hub for like 15 bucks and it has been quick and rock solid.
Click to expand...
Click to collapse
http://www.amazon.com/gp/product/B00DQFGH80
Can you reboot with this USB hub? I have a cheap powered usb 3.0 hub and I cant reboot firetv with it plugged in.
Remember the USB on the AFTV is only USB 2.0, I know...hard to believe huh!?!
Anyway, getting a USB 3.0 hub is just going to cost more and have no performance improvement.
HeXDeMoN said:
http://www.amazon.com/gp/product/B00DQFGH80
Can you reboot with this USB hub? I have a cheap powered usb 3.0 hub and I cant reboot firetv with it plugged in.
Click to expand...
Click to collapse
You mean like reboot with Play and Select button? I believe it works, but to be honest, I don't think I have rebooted the firetv more than once or twice.
I went for 3.0 only for other future purposes (as stated above, Firetv is only 2.0 but that is outdated) and for the power just in case I needed it for external HD + flirc + mouse/keyboard dongle.
jpeg42 said:
You mean like reboot with Play and Select button? I believe it works, but to be honest, I don't think I have rebooted the firetv more than once or twice.
I went for 3.0 only for other future purposes (as stated above, Firetv is only 2.0 but that is outdated) and for the power just in case I needed it for external HD + flirc + mouse/keyboard dongle.
Click to expand...
Click to collapse
I still think it's a waste of money.
The AFTV itself is very future proof. The only thing not future proof on it is the 8GB storage. However, that's still enough to store thumbs, fan art, etc for about 5,000 videos. So, by the time your AFTV needs to be upgraded (3-4yrs?), USB 3.0 hubs will come down in price by a lot. And when you upgrade to an Amazon Fire TV 4 (which will have USB 3.0) you can just buy a USB 3.0 hub and daisy chain your old USB 2.0 hub to it...and use the USB 2.0 hub to connect peripherals, not hard drives.
jpeg42 said:
You mean like reboot with Play and Select button? I believe it works, but to be honest, I don't think I have rebooted the firetv more than once or twice.
I went for 3.0 only for other future purposes (as stated above, Firetv is only 2.0 but that is outdated) and for the power just in case I needed it for external HD + flirc + mouse/keyboard dongle.
Click to expand...
Click to collapse
Yea with play+select button *or any other method* with my el-cheapo hub with power connected it will reboot but then hang on bootup .. if I try to reboot without the power plugged in then it never reboots and just hangs on the "please wait while fire tv powers off" or whatever it says when you hold the buttons.
So for me to reboot I need to unplug the hub .. annoying to say the least and impossible to get into the recovery with a keyboard+hdd ... wanted to install a mount script .. and was very confused when I couldn't reboot.....
As for the price difference.. I'm not going to miss $10 dollars but sometime down the road I'm sure I'll be mad I don't have a usb 3.0 powered hub ..
soo moral of story dont buy cheap hubs from aliexpress
Neo3D said:
Remember the USB on the AFTV is only USB 2.0, I know...hard to believe huh!?!
Anyway, getting a USB 3.0 hub is just going to cost more and have no performance improvement.
Click to expand...
Click to collapse
Haven't checked the pins but i know for certain load times using 3.0 adapters and usb drives on this device are a little over twice as fast. As for reboot, that's probably hub enumeration in kernel.
Sent from my LG-VM670 using XDA Free mobile app
HeXDeMoN said:
Yea with play+select button *or any other method* with my el-cheapo hub with power connected it will reboot but then hang on bootup .. if I try to reboot without the power plugged in then it never reboots and just hangs on the "please wait while fire tv powers off" or whatever it says when you hold the buttons.
So for me to reboot I need to unplug the hub .. annoying to say the least and impossible to get into the recovery with a keyboard+hdd ... wanted to install a mount script .. and was very confused when I couldn't reboot.....
As for the price difference.. I'm not going to miss $10 dollars but sometime down the road I'm sure I'll be mad I don't have a usb 3.0 powered hub ..
soo moral of story dont buy cheap hubs from aliexpress
Click to expand...
Click to collapse
I have the same issue with reboot and using hub. did you find the fix for this issue?
thanks
mrhoque said:
I have the same issue with reboot and using hub. did you find the fix for this issue?
thanks
Click to expand...
Click to collapse
There isn't exactly a fix. I'm guessing your hub is powered. I was reading that when you reboot the AFTV with a powered hub plugged in, it recognizes the power and thinks it is connected to a computer, causing it to go into fastboot mode. Unfortunately, you'll have to keep unplugging every reboot.
With the Latest firmware I am now able to reboot with hdd connected. Although haven't tried with power connected
Sent from my Nexus 5 using XDA Free mobile app
Hi, ive registered with this forum to ask for some information on the Amazon Firestick. I am thinking of buying a fully loaded stick from Ebay in the UK. My main question is i have a UMC 40 inch TV with a usb and Hdmi port but its not a smart tv. Will the Firestick work or do i need a smart tv. Any help would be appreciated Thanks
No SmartTV needed, only HDMI is mandatory of course. USB power can (or better should) be done with the USB power supply of the stick, so also USB must not be used from the TV and can be left free for other devices which need to be connected directly to the TV.
Calibaan said:
USB power can (or better should) be done with the USB power supply of the stick, so also USB must not be used from the TV and can be left free for other devices which need to be connected directly to the TV.
Click to expand...
Click to collapse
= Plug the FireTV Stick into the wall for power, don't plug it into a USB port on your TV for power.
I use my tv's USB port for power with no ill effects. We don't use the USB port for anything else, and it means we don't have to have yet another device plugged into the wall. It does mean that the Fire TV boots up every time the TV turns on, but it boots fast enough that this has not been a distraction.
stealthdave said:
I use my tv's USB port for power with no ill effects. We don't use the USB port for anything else, and it means we don't have to have yet another device plugged into the wall. It does mean that the Fire TV boots up every time the TV turns on, but it boots fast enough that this has not been a distraction.
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Click to collapse
It might work fine for you and other people, but in general, TV USB ports are not reliable as a power source. That might vary from brand to brand, however, it should be noted that an inconsistent power supply or one that doesn't meet the manufacturer's specifications can be bad for the unit over time.
I tried it with other devices. Its a nice way to eliminate wires but I got random reboots and freezes. Never tried it with stick but some people report it works fine.
In general it might work with regular USB power from a TV USB port but I personally had problems with WIFI. It seemed that the stick did switch down WIFI speed (and probably slows down the CPU) when the power is restricted to a TV USB port but does run on full speed with the external power supply. Also those decoding problems during video streaming which is often reported here may come from insufficient power.
A USB port is specified to deliver 0.5A at 5V so thats only 2.5W power which is guaranteed and it´s only mandatory for devices like TV sets to deliver more power. So it makes sense that Amazon did deliver an external power supply knowing the power consumption of their stick My hint would be to check first with external power supply if the stick is running fine and how is streaming working with speed and quality than it is still possible to try only with the TV USB power and it can be compared if there are no negative perfomance issues. But I bet most people will attach the external power again.