Possiblу is replacement of procesor QUALCOMM QSD8250 on HTC HD2 with dual core 1.5GHz procesor similar with mainboard and other components?I mean CPU of another smartphone.Thanks in adviance
I don't even know if its possible, but there would be so many problems caused by doing that that it really wouldn't be worth it.
Sent from my NexusHD2 using xda app-developers app
It's probably not possible.
Too long a response: what I've seen inside the Leo.
I have the remains of 3 disassembled HTC HD2 units in the fight lab (aka storage).
I will warn that these units are never able to be put back together exactly perfect as they were initially. This is because they are assembled like thin layers of stickers stuck on top of each other you need to peel apart. There are layers of copper shielding, plastic, thin metal, etc. all sandwiched together with adhesive. I've taken apart damn near everything I can, (a personality trait and/or symptom of a disorder, a gift and a curse) and I can say that disassembling an iPhone is cake compared to peeling apart HD2s which are a curse.
So, upon peeling it apart, I encountered different CPU cooling techniques on the different units: yellow thermal compound on one, a thick red/orange thermal pad on the second, and a plastic piece stuck with a mystery compound (possibly even glue) on the 3rd. A faster chip will likely be even hotter.
Look into "reballing" when it comes to soldered cpu replacement. The complexities of the physical replacement are significant but the routing of correct functionality from the alien processor are what makes it a much more difficult project, but nothing is impossible.
One would have to have manufacturer schematics of the board, insider details of chips/other components if functionality is to be had even IF the physical removal and replacement of the processor was achieved. The physical install of a faster clocked chip I think we will see done successfully by someone, but the function of the hardware may be forever impossible unless what I believe is closed/unreleased code/info becomes public. If any device were to have it's complete wealth of detailed info released from company insiders/Dark Force Teams/Chinese anons/crafty work, et al, I'd bet it very well would be the Leo. (We can dream).
To be clear, I'm no chip alchemist at all, I'm just sharing what I've seen and been told by some professionals who know at least a little on what I generalize as computer hardware engineering. Having extensively researched (aka wasted too much of my life on) and even managed to discuss with some HP technicians about a tablet CPU upgrade of a soldered Dothan board, I learned that even if the CPU is successfully replaced (& it doesn't explode) it's more than likely the timings of the board may wind up very effed up. Being uncharted territory, there is no way to find out but to try. I appreciate it if I helped or something interesting came from my ramblings, I think clicking thanks helps me or something. Keep fighting and don't take apart your HD2 if you don't have another one handy!
If i change motherboard(cpu,ram and others) and replace them with another motherboard(with cpu,ram and others) but but outside HD2 is unchanged,with same display and buttons!This is a posable?Please tell me?
Drake Sanderson said:
If i change motherboard(cpu,ram and others) and replace them with another motherboard(with cpu,ram and others) but but outside HD2 is unchanged,with same display and buttons!This is a posable?Please tell me?
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er, replace them with what? a quad core and 4gb from your pc? and why? are you skilled in microsoldering and chip reprogramming?
how much space is inside your phone and what do you really think the chances are of replacing anything?
did you not read the post above yours by ComputerFight. he has seen the inside of an HD2 and lived to tell the tale
i would usually answer 'anything is possible' but i think this one has to be a no
Even if it was possible, i don't understand what would you acomplish with it?
HD2 is legend because of it's wide variety of OSs, roms etc, not because of its hardware.. at least not anymore.
I would rather buy an new phone or used HD2 if i feel like playing around with flashing different operating systems.
If you do even manage to successfully solder and re-wire new hardware onto the HD2, it wouldn't be usable because there are no drivers for them. Someone who have to build hardware drivers from scratch or port them from other phones then every HD2 Rom would have to be re-done to work with the new hardware. I'm no tech expert but I hardware isn't the main problem, it's software. It would be cool if we got tegra 3 and more ram on the HD2 though, that would give the HD2 2-3 more years in a chance to run future roms.
Still another smartphone to make the appearance as being an HTC HD2?Do you think it possible?
Would you recommend a dual core cpu to pull out another smartphone and puts htc hd2 (as htc sensation xl)?
Drake Sanderson said:
Would you recommend a dual core cpu to pull out another smartphone and puts htc hd2 (as htc sensation xl)?
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Oh my god....
Reviewers have said that the area near the camera of the phone gets heated. You you experiencing this issue?
How many version updates is this phone expected to get? Any other issues one must know before buying this phone?
Thanks in advance!
android07 said:
Reviewers have said that the area near the camera of the phone gets heated. You you experiencing this issue?
How many version updates is this phone expected to get? Any other issues one must know before buying this phone?
Thanks in advance!
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near the camera is the cpu. when you use the cpu, it gets warm. then it cools down while its not being used. the phone comes with a quad core cpu, that definitely produces heat when being used. on top of that, the back is glass, to let the cpu cool down faster. because its glass, you can feel the heat better than you would be able to feel it through a plastic or metal back. btw, thats not an issue. if someone thinks its an issue, then they just dont know how these things work. like a car engine, it gets hot when its on, and gets hotter when pushing the engine harder. its the same way.
android07 said:
Reviewers have said that the area near the camera of the phone gets heated. You you experiencing this issue?
How many version updates is this phone expected to get? Any other issues one must know before buying this phone?
Thanks in advance!
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I'm not worried about the updates, no other phone get's more updates than a nexus. The Galaxy nexus is still getting updates, and you can always force the update, or a AOSP rom. About the heat, the back glass only heats up on my device while playing games, and only games, not even charging. But that's my experience with the phone, wait for others to answer back. I really enjoy having this phone, even more than my previous galaxy nexus.
The only times I feel heat on the back of the phone are when I use the charging orb to charge my phone, or after I flashed a new ROM and was downloading all my apps all at once from the Store again, the area by the camera that they're talking about got hot. I'd say it was more 'above the Nexus logo' than 'by the camera', but whatever. I have a feeling that's where the antennae are (I was on Wifi). It usually doesn't happen, and doesn't really affect anything.
This phone is supposed to get updates forever and always directly from Google. No manufacturer getting in the way of updates on this baby.
Other issues?..... I guess that there is glass both front and back so be careful with it. I've never broken anything on mine but I guess it's worth noting. If you're clumsy or drop your phone a lot, get a case for this one.
Anybody else worried about the SD 810 Overheating plus the metal body *cough* m9 overheating with metal *cough*
DarkExistence said:
Anybody else worried about the SD 810 Overheating plus the metal body *cough* m9 overheating with metal *cough* [emoji14]
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http://forum.xda-developers.com/showthread.php?t=3213945
Batfink33 said:
http://forum.xda-developers.com/showthread.php?t=3213945
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didnt see that :/
"Worried about overheating because of the metal?". I hate to sound snide, but thats probably the worst worded poll I've seen to date.
You're aware that aluminum conducts heat very well, right? And that removing heat from the processor is important? Therefore, having a metal phone is not necessarily a bad thing? Just curious.
Besides, as linked above, the concern has been discussed ad nauseum, yet no one has a handset to quantitatively prove or disprove the thought that there will be issues anyway.
Needed an inexpensive spare phone. Picked up a Nexus 5x 16GB for less than USD50, with problems (Unable to turn on, only red LED when trying to charge) so starting a project to revive it.
Stumbled across this thread.
Bit the bullet and bought the oudini UNLOCKED H791 32GB Mainboard with the 4GB RAM and a Da Da Xiong 3400mAh Battery to go with it.
Planning to do the copper heatsink mod too.
Was thinking of expanding on the idea of the copper heatsink mod with this Experimental "home-made" modding for heat dissipation mod. Aluminum foil was used along with liquid metal thermal compound in that thread. Not a good idea as liquid metal with aluminum is a recipe for disaster. I was thinking of using copper foil instead. Haven't decided on whether to use thermal paste or liquid metal. Also thinking of creating a bigger surface footprint for the "heat dissipation pipe" like the attached picture.
Your thoughts?
Will update once all parts arrive and I begin assembling. :fingers-crossed:
Attached Thumbnails
Good luck with that. Sounds like fun.
With that mainboard, is there any guarantee it won't start bootlooping a few months down the road?
Good to see somebody else dumping money into such a hobby
Aside from my daily driver 5X, I have another one now at the shop for a reballing job - kind of a long story, outcome still unknown
I don't think that whole 'heat pipe' situation is needed, you are going to be fine just with the copper pad.
I've been running it for a few days now and honestly it's more than enough. You won't get anymore performance out of this chip unless you go sub zero cooling or something.
Seriously, having it run at 30 to 40°C on daily normal usage and 40 to 50 in games or other intensive tasks is just fine.
Thermal throttling is also kept to a minimum, especially with the non-stock thermal configs.
That battery capacity is jank, you can't physically fit that much juice into that space.
The best battery you can get your hands on is a LG *allegedly* original unit from Amazon sold directly by LG. Other than that, you are always going to end up with some knock off that gives you, at best, the same battery life as a 3 year old original one.
Good luck with all this then.
But you'll probably ditch it all in a year's time for a Pixel, when you'll want that fresh Android. That's going to be my story, anyway.
AsItLies said:
Good luck with that. Sounds like fun.
With that mainboard, is there any guarantee it won't start bootlooping a few months down the road?
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I guess there are no guarantees... My understanding is, this bootloop is caused by hardware problem with solder connections between the board, RAM and CPU. The RAM is packed with the CPU together on the top.
This main board has had a new RAM/CPU soldered on. So unless it was a shoddy job, it should all work. Now, under heavy load, heat builds, and when it gets too hot, there is a possibility of the solder connections giving problems again. Which is why I thought of doing the copper heatsink mods to reduce the chances of it happening. Also, with the 4GB of RAM, I am hoping it will have less stress on both CPU and RAM, which in turn will generate less heat, thus reducing the chances of the problems with the solder connections.
All this is just theoretical. I guess I have to build it and see how it goes. :fingers-crossed:
RO.maniac said:
Good to see somebody else dumping money into such a hobby
Aside from my daily driver 5X, I have another one now at the shop for a reballing job - kind of a long story, outcome still unknown
I don't think that whole 'heat pipe' situation is needed, you are going to be fine just with the copper pad.
I've been running it for a few days now and honestly it's more than enough. You won't get anymore performance out of this chip unless you go sub zero cooling or something.
Seriously, having it run at 30 to 40°C on daily normal usage and 40 to 50 in games or other intensive tasks is just fine.
Thermal throttling is also kept to a minimum, especially with the non-stock thermal configs.
That battery capacity is jank, you can't physically fit that much juice into that space.
The best battery you can get your hands on is a LG *allegedly* original unit from Amazon sold directly by LG. Other than that, you are always going to end up with some knock off that gives you, at best, the same battery life as a 3 year old original one.
Good luck with all this then.
But you'll probably ditch it all in a year's time for a Pixel, when you'll want that fresh Android. That's going to be my story, anyway.
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I don’t really game on phones but where I live, temperatures and humidity are quite high. Not looking for crazy performance, just hoping the phone stays cool and will last a while.
As for that battery, we’ll see. No harm trying after all. A guy on reddit bought one and said it does last longer than the original. If it sucks, I’ll just revert back to the original one.
This is just a small hobby/project, who knows how long I’ll use it. I actually already have a Pixel 2 XL. As I’ve mentioned, this is just a spare.
I also bought one of the 4GB boards (two actually) and replaced a dead N5X from ebay with the upgraded one. Works flawlessly, will post screenshots of the system info of 4GB RAM soon when I have my phone sorted.
I'm curious about that battery though - is it legit 3400MaH?
This is the 4GB board I bought, same as you. My first two didn't make it past chinese customs but he sent another two and they made it fine. https://www.aliexpress.com/item/oud...for-LG-H791-32GB-Motherboard/32846103543.html
AsItLies said:
Good luck with that. Sounds like fun.
With that mainboard, is there any guarantee it won't start bootlooping a few months down the road?
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At the moment, no one reported bootloops on Nexus 5X with 4GB Ram. We will see in the future.
4GB board installed, just installing apps and setting it up etc. Feels snappier anyway. When installing ElementalX kernel, I set the read-ahead buffer from 512kb to 1024kb to adjust for the increased RAM.
Soon I will order one Motherboard. If my 5X will have bootloop again.
paradoxiumwind said:
I'm curious about that battery though - is it legit 3400MaH?
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No idea but on the sellers ad, they say they use a EBC-A10H machine to test their batteries for the desired result. Also, there are a couple of brands besides the Da Da Xiong one that I bought. There's HSABAT, LOSONCOER and IBITION.
On reddit k3v1ng1994 says ;-
"Just wanted to update you on the extended battery.
I finally had it delivered a couple of days ago. I can confirm that the battery does so far last longer than the OEM battery- I just don't know exactly how much by.
The biggest issue is the battery has thrown my phone out of calibration. No longer can I see what battery percent I'm on (it always stays on 50%), and the screen on time isn't resetting when I put my phone on charge. I've tried many ways to try and recalibrate the battery, with no luck.
I would say it's not worth getting for this very reason. I'd rather be able to tell how much battery I have left, rather than have a longer battery life. But you might be interested in giving it a go, especially if you're rooted since you can take additional measures to calibrate the battery."
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I guess there is an issue with calibration but I think should be an easy fix with a flash of stock images (or factory wipe) and batterystats.bin will be removed in /data/system... Should be calibrated after that. Not sure which brand he bought though. Who knows. Will try and see how it goes.
Got a notification, my items have been shipped!
Main board should arrive by the 2018-03-18 but the battery says 2018-04-08 . I've ordered stuff from China recently and they usually arrive before their estimates. Hopefully they get shipped out of the country before their Chinese New Year holidays. Then it's up to my country to deliver the goods.
Took apart the phone today and tried the "heating" method fix but it didn't work. I got as far as getting "Google" to appear on the screen then it gets stuck there.
Anyway, looking at the heatsink/"heat pipe" mods, I'll probably stick to thermal paste instead of liquid metal. Liquid metal is corrosive. Even with copper the metal ions will migrate into the copper metal, gradually creating a copper-gallium alloy that is grey-silverish in color. Which is why people think it's drying up. It's actually the copper absorbing the liquid metal.
Looking at what PC CPU heatsink are like these days, the contact point is usually copper, followed by aluminum fins for faster heat dissipation. Why not just follow that recipe. :silly:
So, looks like the copper foil I ordered won't be of any use now :laugh:.
Really don't think a heatsink mod is needed, in my old phone I used a 0.1mm(or 0.2mm I forgot) copper shim over where the CPU is, stuck it on with thermal paste, didn't make much difference in cpu temp.
paradoxiumwind said:
Really don't think a heatsink mod is needed, in my old phone I used a 0.1mm(or 0.2mm I forgot) copper shim over where the CPU is, stuck it on with thermal paste, didn't make much difference in cpu temp.
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A .1 or .2 mm shim won't indeed change anything, it's way too thin for the chip to be in contact with the chassis. Especially if you don't remove the factory yellow pad and the thin foil from the chip shield.
With a .8 or .9 mm copper pad (can't tell for sure, I sanded down a 1mm pad) I can guarantee that you'll notice the temp difference, the throttling is almost gone.
It also depends on what thermal paste you use and how much of it.
Also to everybody wondering why the bootloop issue occures, here's a few things:
The 808 and 810 were the first x64 chips Qualcomm came up with as a response to Apple's. So you can imagine they aren't exactly well thought out, especially in the long run. You can do a bit of research to see how they just janked together some ARM cortexes, slammed a GPU in there and called it a day. Samsung even ditched the 810 from the S6 and used in-house silicon - I think we can safely assume Samsung knows its hw game.
The stock thermal config and kernel are absolute garbage and don't help at all with the thermal throttling that keeps the little cluster pinned at 1440Mhz and the big one off, anytime the package is above 46°C - that's most of the time. Now you tell me how easy that is on the hw.
These design flaws coupled with possibly bad soldering led to our problems. Even though it's hard to imagine that so many boards made it out of the production line with bad soldering since that's a mostly automated and very tidy job, leaving little to mistake.
RO.maniac said:
A .1 or .2 mm shim won't indeed change anything, it's way too thin for the chip to be in contact with the chassis. Especially if you don't remove the factory yellow pad and the thin foil from the chip shield.
With a .8 or .9 mm copper pad (can't tell for sure, I sanded down a 1mm pad) I can guarantee that you'll notice the temp difference, the throttling is almost gone.
It also depends on what thermal paste you use and how much of it.
Also to everybody wondering why the bootloop issue occures, here's a few things:
The 808 and 810 were the first x64 chips Qualcomm came up with as a response to Apple's. So you can imagine they aren't exactly well thought out, especially in the long run. You can do a bit of research to see how they just janked together some ARM cortexes, slammed a GPU in there and called it a day. Samsung even ditched the 810 from the S6 and used in-house silicon - I think we can safely assume Samsung knows its hw game.
The stock thermal config and kernel are absolute garbage and don't help at all with the thermal throttling that keeps the little cluster pinned at 1440Mhz and the big one off, anytime the package is above 46°C - that's most of the time. Now you tell me how easy that is on the hw.
These design flaws coupled with possibly bad soldering led to our problems. Even though it's hard to imagine that so many boards made it out of the production line with bad soldering since that's a mostly automated and very tidy job, leaving little to mistake.
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I don't want to go OT, but understanding some things may help "solve" the heat / bootloop problem in non-bootlooping N5X. In stock kernel, through ExKernelManager, I've seen CPU at 96º C when taking photos with HDR+ With Jolla kernel and the big off, CPU hardly reaches 60º C. If soldering is not "the problem", an "accurate" kernel configuration will be enough to avoid the bootloop? Sorry if I misunderstood your explanation or if I ask something stupid. I know nothing about this, but I would love to learn something. Thanks!
CLPose said:
I don't want to go OT, but understanding some things may help "solve" the heat / bootloop problem in non-bootlooping N5X. In stock kernel, through ExKernelManager, I've seen CPU at 96º C when taking photos with HDR+ With Jolla kernel and the big off, CPU hardly reaches 60º C. If soldering is not "the problem", an "accurate" kernel configuration will be enough to avoid the bootloop? Sorry if I misunderstood your explanation or if I ask something stupid. I know nothing about this, but I would love to learn something. Thanks!
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All I'm saying is pure speculation, the web is filled with people talking bs about 808 and 810.
Also, Qualcomm, LG or Google never settled this with actual honest facts.
Another fact is that some Huawei made Nexus 6P devices bootlooped as well, so you can see how one could easily think that the root problem is the architecture itself of that generation of SoCs.
On the other hand, I can make an 'educated guess' about how a cooler running package prolongs its life and puts less stress on the 'allegedly' weak soldering.
So I think it's safe to assume that running a custom kernel and thermal config, along with other tweaks like the heatsink, will dramatically increase the life of your 5X.
Hello friends first forgive the translator's mistakes. I already knew this topic before but did not know that the motherboard had already been sold already modified.
My thanks to @LeonF for providing the link of the sale of the motherboard with 4GB of RAM.
I already have a functional 5x nexus, but I bought another today with the burned motherboard per US $40.00. Then I bought the motherboard per US $132.05 5% off.
Unfortunately I live in Brazil, the customs (IRS) here are horrible, it will certainly take up to 70 days for me to receive the product, as soon as arrive i come to post my opinion here... on a battery 3400mAh do not think it's good.
I have noticed with my 4gig ram board, my battery usage is really good. same battery. ordered two of those 3400mah ones though, but somehow more ram = better battery time
Copper shims arrived today. They're 15 x 15 x 0.8 mm. Took the phone apart, did a mock of the copper shim then cleaned off the yellow thermal pad...
So @Mortihead found a service that will replace your emmc chip to 32GB, 64GB or 128GB and mentioned I should try.
Mortihead said:
Taobao service now can change internal storage for 32/64/128GB in Nexus 5x
https://item.taobao.com/item.htm?spm=a211ha.10565794.0.0.e9dd404sdwVlg&id=549749619850&toSite=main
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I got in touch with them and found out (as best as I can understand the WeChat translator) that the 128GB chips have been out of stock but they still have the 64GB ones and it will cost RMB280 to do it.
I found this chart from @ikfe from this thread of the part numbers...
ikfe said:
Sure, but my idea is not an occasional adaptater but a real memory extend like this thread : http://forum.xda-developers.com/google-nexus-5/help/nexus-5-64gb-t3350533
I'm confused with 2 ideas :
-Add an SDCard slot (can be cool)
-Extend memory to 64 or 128gb (my advice SDCard still better)
On the iFixit Teardown guide, it says it's a Toshiba THGBMFG7C2LBAIL (16gb variant) chip.
And in the Toshiba catalog, like u can see downside, all chips seems to be the same type (P-WFBGA153).
The problem is the size of the chip. Upgrade can be easily done to 32GB (N5X Variant), or to 64 and 128 gb, up to 0,4mm difference.
Searched a bit on the web and finded some chips:
64GB Variant:
https://www.rutronik24.com/product/toshiba/thgbmhg9c4lbair/7782539.html
http://fr.aliexpress.com/item/THGBMHG9C4LBAIR-VFBGA-153-eMMC5-1-64GB-Flash-Memory/32653487163.html
128GB Variant:
http://fr.aliexpress.com/item/THGBMHT0C8LBAIG-TFBGA-153-eMMC5-1-128GB-Flash-Memory/32653124263.html
http://www.alibaba.com/trade/search?fsb=y&IndexArea=product_en&CatId=&SearchText=THGBMHT0C8LBAIG (Ask seller)
The only problem i see is like i said above, the chip size grew up to 0,4mm, so is it possible to do it without get an curved nexus?
Any ideas where and how is possible to put an SD Reader?
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Searched for the 128GB chips and found this for USD$35. I can go as far as fitting the new 128GB chip but I have no idea how to proceed after that. Reading the thread about @KApetz2 and how he fitted a 64GB eMMC to his Nexus 5 you have to fix the partition tables to support the larger capacity storage or it wouldn’t recognize the upgrade. If someone can point me in the right direction, I might try it out.