[munkeyjim]

I accidently broke the screen glass !!! does anyone know where I can get a replacement? please... thank you

[MrTasselhof]

munkeyjim, on 13 May 2011 - 07:21 PM, said:

I accidently broke the screen glass !!! does anyone know where I can get a replacement? please... thank you

I suggest contacting Merimobiles.com and asking them about a sourcing a replacement part.

Tasselhof

[bigview65]

fredtec, on 26 March 2011 - 11:21 AM, said:

Hi guys!
Tell me please the mark of element circled in a red line. I suppose I've burned it cause of charger's wrong polarity.


PS Sorry for my bad english.

Today I tried to use a universal adapter and connected the plug with the wrong polarity. I smelled smoke in half a second. It still charges but not like before. I opened up the tablet and the IC definitely needs to be replaced.

I already did a search on some of the numbers but nothing comes up.

I would appreciate if you could post when you find out. Of course I will post if I find out first.

Thanks

[AntonS]

bigview65, on 13 May 2011 - 09:16 PM, said:

Today I tried to use a universal adapter and connected the plug with the wrong polarity. I smelled smoke in half a second. It still charges but not like before. I opened up the tablet and the IC definitely needs to be replaced.

This IC is linear charger EUP8057. You can easily find datasheet in Google.

[Ultygeek]

Have you had any luck finding a replacement for your burnt IC?

I ask because I have an issue with my tablet. It will no longer charge the battery and in order to use it I must have it plugged in.

[bigview65]

AntonS, on 16 May 2011 - 05:28 AM, said:

This IC is linear charger EUP8057. You can easily find datasheet in Google.

!!!!! FANTASTIC! THANK YOU! !!!!!

I have been trying to identify this IC but the markings were charred off. I tried to remove the IC in the hopes of reading the marking but it was burned and broke apart.

I was just about to post a request to see is someone can provide markings of a good one.

I will order this piece and report on my progress.

[purplesun]

M7-M Internal photo.

Unscrew 2 screws on the ports side.
Undo white clips along the 3 other sides.
That's all to open the back cover.

Attached File(s)

•  M7-M internal.jpg (266.58K)
  Number of downloads: 173

[Loonix]

interesting!
So the M7-M has no volume keys but build in bluetooth?
How does the backside feel, is it firm?

[purplesun]

Loonix, on 25 May 2011 - 08:43 AM, said:

interesting!
So the M7-M has no volume keys but build in bluetooth?
How does the backside feel, is it firm?

Quite a thick and rigid piece of plastic cover with good finishing. The slightly curved back feels quite good to hold when reading the M7-M in vertical orientation.

I think the bluetooth module is just above the internal microSD card, wrapped in masking tape.

This post has been edited by purplesun: 25 May 2011 - 09:27 AM

[enotar]

Are you getting a much better reception with the new antene location? Or it just was because you had no space?
Mine is stick on the plastic cover, really dont know if this is the best spot......



Thanks

arielp, on 06 May 2011 - 10:37 AM, said:

My Version of Teardown,




ps: wifi antenna final position near the sdcard (stick to the back plastic panel)

[TL1]

The built-in memory IS USED!!
First of all, it was obvious that it keeps boot / recovery / reflash software.

But also...
I removed internal SD card with 2.2 firmware, put a clean card and flushed 2.3. Then I put the 2.2 card back, boot and what do I see??? I see Android 2.3 with all my Android 2.2 apps there, and working! Looks like system partition is copied to the internal memory
But, some apps lost their settings, some stopped working (inc. Market), so I have to reflash again...

This post has been edited by TL1: 26 May 2011 - 10:09 AM

[ransagy]

The upgrading/flashing script creates the root partition on the NAND, not the Internal SD. The SD keeps the userdata mostly, which includes the apps.

[Awesomo]

arielp, on 06 May 2011 - 10:37 AM, said:

My Version of Teardown,

during battery change to M816 Battery, which result very good, lot better battery life, stable voltage (no battery level fluctuation)

take off the back panel using hairdryer method + suction cup + lot of patience



ps: wifi antenna final position near the sdcard (stick to the back plastic panel)

Hello
I noticed that on all dissection videos, pictures there is beige colored Atheros wifi chip. And on your's pictures some black wifi chip, like in mine tablet. What chip model is this? How does it works? I'm asking because mine doesn't work so good, but it might be firmware or antenna fault. Thanks.

[Zoppatorslk]

Yesterday i dissassembeled my dropad a8 bought from pandawill.
I did this because the wifi signal created interference with the audio.

I moved the wifi antenna, and now the interferance is alsmost gone, i have to turn off the volyme and put my ear against the speaker to hear it



Marked in red is the original antenna location and marked in yellow is the new location. I also got the nand chip and a sandisk class 4 micro sd card

[arielp]

Awesomo, on 27 May 2011 - 01:42 PM, said:

Hello
I noticed that on all dissection videos, pictures there is beige colored Atheros wifi chip. And on your's pictures some black wifi chip, like in mine tablet. What chip model is this? How does it works? I'm asking because mine doesn't work so good, but it might be firmware or antenna fault. Thanks.

its the same artheros ar6000 family. written on chip ar6002

mine works good

This post has been edited by arielp: 29 May 2011 - 09:41 AM

[violet313]

@those wishing to pop the back off & peek inside,,but worried about the various posts re. ruining the plastic backing ~despite mrTass' utube tear-down && hilarious warning,, here's my how:

• prefer not to use hairdryer -might melt the plastic
  
• prefer not to use screw-drivers knives, machetes, etc -the underside is easily scratched & the plastic is clearly brittle
  
• apply suction-cup to corner
  
• once backing has lifted a little (easyPeasy), insert strong, thin piece of cardbaord (= 4me, packaging of sandisk microsd card i just bought)
  
• s-l-l-o-w-l-y, from one side to the other, push card all around edges,, &making sure to do the middle before going more than half-way down both edges -prevents the plastic from bending 2much.
  
• then, marvel at the micro-architecture hidden within!

(=

This post has been edited by violet313: 02 June 2011 - 05:05 PM

[Lubo]

bigview65, on 17 May 2011 - 10:26 AM, said:

!!!!! FANTASTIC! THANK YOU! !!!!!

I have been trying to identify this IC but the markings were charred off. I tried to remove the IC in the hopes of reading the marking but it was burned and broke apart.

I was just about to post a request to see is someone can provide markings of a good one.

I will order this piece and report on my progress.

do you make any progress with this ?

i made same stupid mistake...
my tablet still works, but is too hot when charging, and discharges very quick

[mg3100]

@purplesun

Can you tell me what the markings are on the black chip about 1 inch to the right of the internal sd card,
next to the white "ha na" sticker. My device doesn't have that chip and I like to know what it is.
Since your device has BT I assume that's what the chip is for.

mg

This post has been edited by mg3100: 07 June 2011 - 11:40 AM

[purplesun]

mg3100, on 07 June 2011 - 11:20 AM, said:

@purplesun - Can you tell me what the markings are on the black chip about 1 inch to the right of the internal sd card,
next to the white "ha na" sticker.

It's a 4-port USB 2.0 Hub chip, Probably vital to the functioning of the internal USB BT dongle.

Here's the link to the chip's datasheet;
http://www.jfd-ic.co...v.%201.0%29.pdf

Attached File(s)

•  USB2 Hub.jpg (112.21K)
  Number of downloads: 123

This post has been edited by purplesun: 07 June 2011 - 12:11 PM

[mg3100]

Thanks purplesun for the info,

I can cross it off my todo list now