Asus Memo Pad HD7 - Threads? Root? Roms?

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HoR77

Member
Jun 30, 2010
30
4
Frankfurt
Hi there,
just ordered my Asus Memo Pad HD7 and I didnt find a single Thread about it, am I just blind or are there none?

I am looking for Custom Roms etc, guess it's just a little early for that, but maybe just rooting works?

Is there a Thread or sub forum for the Memo Pad HD7 ?
 
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T!b

Senior Member
Jan 10, 2011
441
46
35
If usb debogage isn't enabled you can't connect with adb.. Hum, unlock the bootloader then flash stock rom and bootloader, it's risky i know, maybe another solution from someone else ?

Envoyé de mon ME173X en utilisant Tapatalk
 

WantToJAVA

Member
Sep 1, 2013
19
6
Other Asus MeMo Pad HD7 Features?

I wonder if anyone has explored some of the other features on the HD7?

1) Miracast: I notice the HD7 has a menu for Miracast, and I also see Miracast dongles selling on EBay for around $15 and up. Miracast is supposed to let you mirror your tab on to a HDTV at 1080p and Dolby 5.1 via a private WiFi signal from a dongle powered only by a TV's HDMI socket. In other words, it does not use your home WiFi, and has the added advantage of being able to play media from your HD7 onto your HDTV without worrying about Digital Rights Management.
An added advantage over devices with a micro HDMI output is that you do not need to run a mini HDMI cable to your HDTV, however you have to keep your tablet screen -on- while your media plays.

2) Viper: One of the reasons to root is the ability to install the Viper 10 band equalizer. Has anyone calibrated the Viper equalizer after rooting, perhaps using an audio scope or spectrum analyzer to compare 'ideal' Viper settings for various types of music? If anyone has this type of H/W perhaps they could publish settings rather than use the built-in Asus settings for Music, Voice, etc... Since the tab has the Bang & Olafson metal domes, the results should be fairly uniform amongst all the HD7 tabs..

3) It seems to me that if you ran a series current limiting resistor and zener diode to the HD7's battery '+' terminal, (you can power the micro USB socket for very low powered micro USB devices capable of being powered by 4V. So for a max of 10mA, you might use a series resistor of, say 270 ohms. 270 ohms would limit the (accidental) short circuit current to a max of 4V / 270 ohm = 15 mA. Doing this could allow the powering of very low powered micro USB devices without the hassle of an external supply.

Just some thoughts on extending this tablet's usefulness...
 
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jellysheep

Senior Member
Oct 3, 2013
103
42
3) It seems to me that if you ran a series current limiting resistor and zener diode to the HD7's battery '+' terminal, (you can power the micro USB socket for very low powered micro USB devices capable of being powered by 4V. So for a max of 10mA, you might use a series resistor of, say 270 ohms. 270 ohms would limit the (accidental) short circuit current to a max of 4V / 270 ohm = 15 mA. Doing this could allow the powering of very low powered micro USB devices without the hassle of an external supply.

Just some thoughts on extending this tablet's usefulness...

I also thought of this already. How would you connect the zener diode?
Why would you restrict it to 4V? Isn't it a 5.2V battery?
Could you draw more current out of the battery or is this bad for the device?

Thanks,
Jellysheep
 

WantToJAVA

Member
Sep 1, 2013
19
6
I also thought of this already. How would you connect the zener diode?
Why would you restrict it to 4V? Isn't it a 5.2V battery?
Could you draw more current out of the battery or is this bad for the device?

Thanks,
Jellysheep

The battery is 4 Volts. So you would put a series resistor from the '+' side of the battery to the '+' side of a zener, and the '-' side of the zener to ground. You can then power the uUSB from the '+' side of the zener. I put the series resistor as an example. I think most small devices like a flash drive are CMOS/MOS type devices which don't use much power. It would be fine for things like that.
 
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kristakos

Senior Member
Dec 17, 2013
186
83
Sofia
The battery is 4 Volts. So you would put a series resistor from the '+' side of the battery to the '+' side of a zener, and the '-' side of the zener to ground. You can then power the uUSB from the '+' side of the zener. I put the series resistor as an example. I think most small devices like a flash drive are CMOS/MOS type devices which don't use much power. It would be fine for things like that.
Or , you can use some ICs to build convertor(step up voltage) from 4-5v.
 
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jellysheep

Senior Member
Oct 3, 2013
103
42
The battery is 4 Volts. So you would put a series resistor from the '+' side of the battery to the '+' side of a zener, and the '-' side of the zener to ground. You can then power the uUSB from the '+' side of the zener. I put the series resistor as an example. I think most small devices like a flash drive are CMOS/MOS type devices which don't use much power. It would be fine for things like that.
Ah, i thought the battery would be 5.2V, not sure where i read this. Thank you for the explanation! :)





Or , you can use some ICs to build convertor(step up voltage) from 4-5v.
Yeah, would be possible, but I don't know how sensible the board is (HF signals on battery, high current peaks etc.). Maybe trying this out in a few weeks, would be amazing. :)
 

WantToJAVA

Member
Sep 1, 2013
19
6
Ah, i thought the battery would be 5.2V, not sure where i read this. Thank you for the explanation! :)






Yeah, would be possible, but I don't know how sensible the board is (HF signals on battery, high current peaks etc.). Maybe trying this out in a few weeks, would be amazing. :)

I think the main problem is that the same uUSB socket is used to charge the battery. So you also have to install a blocking diode in series to prevent the two '+' voltage supplies meeting each other as well. And the forward bias voltage for the series blocking diode will further drop the voltage down to 3.5V for a silicon diode. However this is still within limits of the definition allowed.

Don't know about adding an IC in there too, though...
 

jellysheep

Senior Member
Oct 3, 2013
103
42
I think the main problem is that the same uUSB socket is used to charge the battery. So you also have to install a blocking diode in series to prevent the two '+' voltage supplies meeting each other as well. And the forward bias voltage for the series blocking diode will further drop the voltage down to 3.5V for a silicon diode. However this is still within limits of the definition allowed.

Don't know about adding an IC in there too, though...
Yeah, you're right. Maybe the two connected + voltages would not matter because definitely there can't be a current from and to the battery.
It could work to lay out the battery pins to the outside and do the modifications on an external USB cable so that the battery pins are not connected to the uUSB socket pins.
 

kristakos

Senior Member
Dec 17, 2013
186
83
Sofia
Don't know about adding an IC in there too, though...
If tablet allow to supply external device I don't see problem to build convertor to step up the voltage from 4v to 5.2v for example ,it depends how much voltages can deliver.
One example here
My idea is to use otg without external power supply(of course this is for low power consumption devices)
 
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Felborn

Senior Member
Jul 19, 2013
105
9
This poxy thing is doing my head in... So today I rootet with framaroot, whole thing was rooted in all of 2 seconds. I fired up OTG helper software, it said it did some fixed and asked for a reboot. Rebooted, and tada! Still nothing!

I have a USB OTG cable with exernal power, I connect a USB stick and I can see the light on the stick fire up so it's getting power, but my device can't access it or sees it at all. Can anyone link to a USB OTG cable that actually works with this tablet?
 

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    [Howto] Unbrick memopad HD7

    HowTo "Unbrick Asus Memo Pad HD7"

    Note: The Files and the Knowledge in this tut, are from 4pda.ru , and not from me

    Original Thread 4pda: Thread

    Many Thanks to: Enriki from 4pda.ru

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    yueo5klvuwef.png


    89e788xtyjfu.png


    4gy6ubintit2.png
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    nq5bhah5opp.png
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    oposuutlzpde.png

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