Change of CPU - G2 and Desire Z Q&A, Help & Troubleshooting

Hi everybody!
Little question appeared in my head- have anybody heard of replacement of CPU in the g2 or other htc models? Is ot possible?
Sent from my HTC Vision using XDA App

Anything is possible with enough tools and knowledge
Sent from my HTC Vision using XDA App

well, i understand that.
but maybe somebody from xda tryed this?

Never heard of it actually attempted but the question has been posed before.
Are you asking about replacing it with the same SOC that came with the G2 or a different one?

KCRic said:
Never heard of it actually attempted but the question has been posed before.
Are you asking about replacing it with the same SOC that came with the G2 or a different one?
Click to expand...
Click to collapse
i think a different one, as an idea of maximizing productivity

Afaik, it hasn't been attempted before. The problem is it's not like the socket-based cpu's in pc's. These are system on chip, meaning everything is on them; cpu, gpu, everything, as far as I understand it. In a pc, as you know, these are separate parts that can be readily changed. Plus, no one really knows if the other hardware would be compatible. Then after all that, you need to get the software to work. It's a hell of a job.

heybobitsme said:
Afaik, it hasn't been attempted before. The problem is it's not like the socket-based cpu's in pc's. These are system on chip, meaning everything is on them; cpu, gpu, everything, as far as I understand it. In a pc, as you know, these are separate parts that can be readily changed. Plus, no one really knows if the other hardware would be compatible. Then after all that, you need to get the software to work. It's a hell of a job.
Click to expand...
Click to collapse
But man would it be cool. True pain in the ass for sure
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Spastic909 said:
But man would it be cool. True pain in the ass for sure
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Click to expand...
Click to collapse
It would be defenetely cool
Sent from my HTC Vision using Tapatalk

Well I think it would theoretically be possible to change the CPU if they are pin compatible, which happens often with CPUs from a same series.
BUT
Where would you buy a cpu? what do you think it would cost?
and how would you assemble it on the mainboard, those modern IC's have very small pins/balls underneath it, which you can't just solder!

I was thinking after reading this yesterday and posting. Since we would be dealing with a SOC the baseband radio would be integrated into it - which means *if* this could be accomplished, it would give us the freedom to literally use a phone on any carrier we wanted will full data access speeds i.e. use the G2 on AT&T '4G'.
Obviously the 'easiest' method would be to use the SOC out of a Desire Z since everything would be the same except for the radio - thus eliminating software issues. Now all we need is a way to deal with the extreme micro scale of all the pins and such.
Now to switch out to say, a Tegra 2 - I doubt the pins match and that goes for any dual core. To go to something like an 8xXX series (are those dual or single?), now that might be possible but as far as single cores go the G2 has IMO the best out there. Sure there are some slightly upgraded 7xXX series processors out there but nothing worth the headache this would bring.

KCRic said:
I was thinking after reading this yesterday and posting. Since we would be dealing with a SOC the baseband radio would be integrated into it - which means *if* this could be accomplished, it would give us the freedom to literally use a phone on any carrier we wanted will full data access speeds i.e. use the G2 on AT&T '4G'.
Obviously the 'easiest' method would be to use the SOC out of a Desire Z since everything would be the same except for the radio - thus eliminating software issues. Now all we need is a way to deal with the extreme micro scale of all the pins and such.
Click to expand...
Click to collapse
Its absolutely identical in every way. The radio amplifiers are NOT in the SOC, so this would NOT change the frequency. In addition, wouldn't it be easier to just swap phones than to rip them both apart to trade identical components first?
Now to switch out to say, a Tegra 2 - I doubt the pins match and that goes for any dual core. To go to something like an 8xXX series (are those dual or single?), now that might be possible but as far as single cores go the G2 has IMO the best out there. Sure there are some slightly upgraded 7xXX series processors out there but nothing worth the headache this would bring.
Click to expand...
Click to collapse
The 8xxx series is identical. In fact, the 7230 ***IS AN*** 8255, its just **DOWNCLOCKED**. They changed the model id number ONLY.
An 8260 would DEFINITELY NOT be pin compatible, so the limit is 8255, which is pointless.

Well I agree it would be easier to just switch phones, albeit cheaper I was just answering his hypothetical question.
I always figured being a SOC the radio would be itegrated into that, guess that remote purpose for switching out the SOC is out the window.
Sent from my HTC Vision

As for doing it you would need a micro balling and reflowing station
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Related

[Q] Would you buy this phone again?

OK, So I'm shopping for a new phone,
I've been enjoying getting my feet wet with a comparatively low end model & am becoming somewhat addicted to constantly tinkering, have managed to compile my own kernel and now feel the need for an upgrade.
This (Desire Z) is currently at the top of my list as it seems to be well supported by the dev community & I really want a qwerty keypad!
So, as users of this phone & knowing what you know now...
Would you buy this phone again?
Well, I love my Z and i think it works fast and the keyboard is amazing. But the problem these days is: Dual core phones are coming out a lot right now, and even the fast processor of the G2 can't compare to that. So, as much as i love my Desire Z, I would wait a while for a Dual Core HTC (like the Pyramid).
But ofcourse: If you REALLY want a phone right now, a Desire Z with an Otterbox Commuter case is my recommendation! (since I personally love the Otterbox case, hehe.)
hubba88 said:
Well, I love my Z and i think it works fast and the keyboard is amazing. But the problem these days is: Dual core phones are coming out a lot right now, and even the fast processor of the G2 can't compare to that. So, as much as i love my Desire Z, I would wait a while for a Dual Core HTC (like the Pyramid).
Click to expand...
Click to collapse
Cool, thanks for the input...
I hear what you're saying, my thinking right now is that in order to learn more about kernel & ROM development, is that I should be getting something that has a good amount of hacking & dev work behind it already.
The newer phones are less charted waters & I'm not experienced enough to be a pioneer
Will be sure to look at the otterbox case
waydownsouth said:
Cool, thanks for the input...
I hear what you're saying, my thinking right now is that in order to learn more about kernel & ROM development, is that I should be getting something that has a good amount of hacking & dev work behind it already.
The newer phones are less charted waters & I'm not experienced enough to be a pioneer
Will be sure to look at the otterbox case
Click to expand...
Click to collapse
Yep, that's also true. And indeed, there is alof of development going on for the Desire Z, it's great. And so many awesome roms to choose from as well.
As Hubba88 said, at this point, I'd wait for a dual core like the HTC Pyramid/Sensation. But, I love my G2 and am very happy with the purchase. Great keyboard, capacitive buttons are in the right place, very responsive trackpad. All in all typically great HTC build quality. CyanogenMod support is a huge plus as well for this phone.
If I knew that the z hinge was going to be so ****ty no,I would not buy it again. I'd go for a unibody design instead.
Sent from my Liquid Metal using XDA Premium App
If the keyboard is important to you, as well as the tinkering aspect, then I reckon this is a good phone.
Not sure there has been much talk of dual core's with keyboards? So a real Desire Z upgrade may be some way beyond the next few HTC phones. Even then when they come out it takes time to build the developer base behind it and get rooting sorted etc. I moved a month and a bit ago and reckon there will be nothing to make me desperately want an upgrade for at least a year.
Look how well the desire has done and still does. The DZ has a better processor and more storage on board etc. The overclockability of the chip seems to be something that will extend its lifespan in terms of performance against the newer phones.
Always worth remembering that there is often quite a difference between phones being rumoured, then announced, and then actually on sale and being hacked. Therefore if a desire Z replacement is not yet in the rumours, it will likely be quite a while before its out there in the real world.
So yeah, I think its a good phone, although not perfect.
As I have insurance with my contract I will be OK with any problems with the Hinge - but none so far.
I voted yes but if I were in the market for a phone now I'd wait till the G2x was available and compare side by side. I suspect I'd get that one because it's newer, faster and has a more future proof AT&T compatible radio.
Thanks all for your input so far,
I've been following the Official thread on which phone should I get for some weeks which does talk about the latest & greatest dual core's an awful lot, but, as I said above the support & dev work that has gone into the DZ already is probably the biggest factor for me, it should give me a good base to work/learn from.
crazyC said:
Look how well the desire has done and still does. The DZ has a better processor and more storage on board etc. The overclockability of the chip seems to be something that will extend its lifespan in terms of performance against the newer phones.
Click to expand...
Click to collapse
I saw in Hubba88's sig that 1.3Ghz is achievable, that seems more than fast enough given the apps that are currently available. I'm thinking it will take a while for any apps to be taking advantage of dual cores...
Re Hinge, well I can cope with that if it becomes an issue, the teardown & repair looks pretty straight forward.
waydownsouth said:
Thanks all for your input so far,
I've been following the Official thread on which phone should I get for some weeks which does talk about the latest & greatest dual core's an awful lot, but, as I said above the support & dev work that has gone into the DZ already is probably the biggest factor for me, it should give me a good base to work/learn from.
I saw in Hubba88's sig that 1.3Ghz is achievable, that seems more than fast enough given the apps that are currently available. I'm thinking it will take a while for any apps to be taking advantage of dual cores...
Re Hinge, well I can cope with that if it becomes an issue, the teardown & repair looks pretty straight forward.
Click to expand...
Click to collapse
Even 1.9 ghz is achievable . And I haven't had any problems with my hinge, it's pretty sturdy.
If you need a phone now, get the DZ.
If you can wait, wait until the quad core phones come out in 2012.
I love my G2 but I would not buy this phone again. With Swiftkey I find that I never use the hardware keyboard which was the main reason I bought my G2. If I could go back in time I would get a Nexus S or maybe a galaxy s.
Obvious answer is obvious:
Why get the same phone again when it has been 6 months since it first came out, therefore rendering the phone "obsolete", so to speak. If I had half a grand cash in my pocket right now I would wait for the HTC Pyramid (Their Dual Core).

The Htc Sensation Rom is Simply Beautifull !!!

hi everybody .. just finished to look the video of the Htc Sensation and i hope someone will port this rom on the DHD ..
PS : sorry for my english
The DHD questions section isn't really the best place to post a thread about how beautiful a rom for a completely different device is
Lol. It's possible.. but will take some time for sure.
Sent from my Desire HD using XDA App
https://twitter.com/htc/statuses/58287330590601216
You got to be kidding me..... How can something like 'Sense' be to heavy to run on a 1ghz processor? Most app's don't even require this.
mesut19 said:
https://twitter.com/htc/statuses/58287330590601216
You got to be kidding me..... How can something like 'Sense' be to heavy to run on a 1ghz processor? Most app's don't even require this.
Click to expand...
Click to collapse
Sense 3.0 will run on a 1ghz processor, its just marketing.
mlenderink said:
Sense 3.0 will run on a 1ghz processor, its just marketing.
Click to expand...
Click to collapse
+1 its all about the business tactics.
we are building the sensation rom for dhd, will take some time though.....lots to do
Yup, you can follow the devs working on it in the dev thread! They have it sort of working now, although the different screen resolution seems to be a problem. However, they say it's working very smooth! No lag at all! So the 1Ghz is not a problem.
Just have to be patient for the resolution to be fixed... which seems to be a not so easy fix...
It runs fine on a DHD, I loaded the sense 3 alpha rom and it ran perfectly fine. It's currently non-functional and the resolution isn't ported yet.
+1 It's just marketing.
Maybe HTC is thinking on the battery life of their old phones.
Our 1GHz CPU has alot more work to do for the Sense 3.0 UI and they can't just shrink the already bad battery life.
That would make sense, as the Flyer is getting the new UI right? And it has the same CPU/GPU but a way bigger battery
now take a look at it again..
what is so special or surprising in this?
Could be to do with the current battery, but if you look at the improvements CoreDroid have made to their ROM, they have managed to get a much faster Sense ROM, but with much better battery, so surely HTC would be able to do this? CoreDroid claim to have better battery by 50%, if HTC managed to do the same, running a ROM made originally for a dual-core processor would result in the same battery life that we have now. Just think about it and you'll understand.
Sent from my Desire HD using XDA App
It's HTC marketing, for people who don't know much about phones to make them upgrade.
True, but most people that get Android tend to know what they are doing, am I not correct? If you have never used Android before, and your phones due an upgrade, surely you would go for an iPhone, due to the ease of use and the general market share the iPhone has. And even if you did go for a top spec Android phone such as the Desire HD, why, just a few months after you have bought it, would you go out and buy a new phone just because if a software update and a few internal changes? As far as I'm concerned, if it is HTC using ways of Marketing, then they will be loosing me as a customer. I've gone from a Desire to a Desire HD on a contract upgrade, I only chose the Desire HD due to the updated sense, and that's gods honest truth, and now, 5 months later, I'm being told that my phones spec doesn't match up to that required of the new update, despite the fact that to-date the DhD is the most powerfules phone on sale in the UK. HTC's gonna loose customers if they keep showing off shiny new things, and not giving it to so-called 'respected customers'.
Sent from my Desire HD using XDA App
jaaystott said:
True, but most people that get Android tend to know what they are doing, am I not correct? If you have never used Android before, and your phones due an upgrade, surely you would go for an iPhone, due to the ease of use and the general market share the iPhone has. And even if you did go for a top spec Android phone such as the Desire HD, why, just a few months after you have bought it, would you go out and buy a new phone just because if a software update and a few internal changes? As far as I'm concerned, if it is HTC using ways of Marketing, then they will be loosing me as a customer. I've gone from a Desire to a Desire HD on a contract upgrade, I only chose the Desire HD due to the updated sense, and that's gods honest truth, and now, 5 months later, I'm being told that my phones spec doesn't match up to that required of the new update, despite the fact that to-date the DhD is the most powerfules phone on sale in the UK. HTC's gonna loose customers if they keep showing off shiny new things, and not giving it to so-called 'respected customers'.
Click to expand...
Click to collapse
Yeah I know what you mean, but 5 months is a long time in the technology world. Their marketing will try to convince anybody to upgrade since old stuff is not "good enough".
Desire HD is a SICK phone, I don't really see why to upgrade from it and that's maybe what they are tying to achieve with this marketing?
As you've said, noobs don't usually buy an android and if they do they probably go back to a iphone, so who are they trying to fool?
ErOR22 said:
Yeah I know what you mean, but 5 months is a long time in the technology world. Their marketing will try to convince anybody to upgrade since old stuff is not "good enough".
Desire HD is a SICK phone, I don't really see why to upgrade from it and that's maybe what they are tying to achieve with this marketing?
As you've said, noobs don't usually buy an android and if they do they probably go back to a iphone, so who are they trying to fool?
Click to expand...
Click to collapse
Thanks for helping confirm what I put, HTC are fooling nobody because I doubt a lot of people are going to get the Sensation despite the beautiful UI. W have already proven it can work on the Desire HD, and your right it is a sick phone! I reckon HTC will eventually release the full 3.0 update, due to demand, but it will be well after the Sensation release.
gekrem said:
we are building the sensation rom for dhd, will take some time though.....lots to do
Click to expand...
Click to collapse
POKER FACE..... really? it´s great!!!!! and thank´s of course gekrem!!!
pd: i think that there´s no problem with the processor we can do OVERCLOCK and set up performance!!!! only a little condition... bad battery drain..

Processor swap?

Does anyone know if the EVO 4g's processor can be swapped out with an aftermarket dual core processor like the one in the 3D. If so will it break other parts in the phone. Just a thought.
Sent from my PC36100 usig XDA App
dont think it will just be easy as that i think we will need a modified rom and kernel that can work with the processor and some other stuff if it were that easy i think most people would do that
Thanks just a thought.
Sent from my PC36100 using XDA App
If it were only this easy. But my buddy Afteraffekt has some reasons why this would never work.
Chipsets arent comaptible
CPU is soldered on
RAM isn't compatible
Just physically doing the swap is nearly prohibitive. With surface mounted chips like this, you can't just grab a soldering iron from Radio Shack and have at it. You need special equipment, and I don't even know if HTC themselves would remove processors and replace them (i.e., for servicing). They probably just pitch the board. Add to that the fact that the chip size probably isn't the same, so it wouldn't match up with the leads from the old processor, and even if it did, the pin-outs might be different.
Finally, even if you could make it physically work, other parts on the board may not be designed to work with it, and you'd probably need to put together a custom kernel at least to get the thing to boot.
So....short answer...no.

[Q] Rom Porting from the i9100

Would it be super hard to port roms from the i9100? Doesnt it kinda have the same bands as the skyrocket ? What makes it different if its drastically different? JW?
I'm not a developer but this is how I understand it (I might be wrong though): It would be akin to trying to port a HTC or Motorola ROM to our phone, because the T989 has almost nothing in common with the i9000. They use different hardware, specifically the CPU and Modem/Radio on the SoC (Socket on a Chip), and therefore a different kernel which needs different drivers, etc. Skyrocket uses almost identical hardware, so a lot of the core files are the same.
yup! what Mitallust said
understood my friends thanks for the answer. I dont know if you guys have been in that forum but they have a rom Called sensation that looks badass. i wish someone could make something like it,
Socket on a chip made me lol.
My corrections in red.
Mitallust said:
I'm not a developer but this is how I understand it (I might be wrong though): It would be akin to trying to port a HTC or Motorola ROM to our phone, because the T989 has almost nothing in common with the i9100. They use different hardware, specifically the CPU and Modem/Radio on the SoC (System on a Chip), and therefore a different kernel which needs different drivers, etc. Skyrocket uses almost identical hardware to the t989, so a lot of the core files are the same.
Click to expand...
Click to collapse
bkaltec said:
Socket on a chip made me lol.
My corrections in red.
Click to expand...
Click to collapse
Lol, total brain fart there. Thanks!

[Q] Downside to 4G LTE?

Noob here who has decided on Samsung note 10.1 for my first tablet ... but which one? Looking for fastest performance and longevity. Does the added mobility of 4G degrade performance during WiFi operation? ... are there disadvantages other than related costs?
tx in advance!
I will advice the 4G version because it have the Snap800 like processor and have the 4G that is better and faster like 3G.
Finally, the Snap800 will have more support from dev then the 3G with the Exynos by Sammy
The trade-off will be reduced battery life most likely if traveling in weak LTE areas.
I'm leaning towards SD800, especially after what I saw in the picture
Sent from my GT-N7100 using Tapatalk 4
Thank you for your replies. Looks like only the 4G version has the faster SnapDragon800. Ok that's settled.
Between32 and64, will the 64 remain faster as the memory folk
fills up or is it all the same in respect to performance?
Tx for answering my dumb questions!
g8rella said:
Thank you for your replies. Looks like only the 4G version has the faster SnapDragon800. Ok that's settled.
Between32 and64, will the 64 remain faster as the memory folk
fills up or is it all the same in respect to performance?
Tx for answering my dumb questions!
Click to expand...
Click to collapse
I wouldn't say that the sd is faster just yet, there are no real benchmarks out there just yet for the new octo core 5420, based on the few cryptic leaks they seem to think that the new octo might be a tiny bit faster. Im not going to jump to any conclusions just yet, I would preffer the sd800 on my device if only for the cyanogenmod support
Will you be able to use this device as a phone? As in does it have a dialer that you can use with a regular SIM like the old one?
I'm getting the one with the Snapdragon processor in it.
Sammy promised that they will include HMP (Heterogeneous Multi Processing) in their 5xxx processors . Ie; they will make s4,note3 and note 10.1 to real octa core processors through a software upgrade (say kernel upgrade)...so guess , which will have higher performance , sd or exynos? ? ? ?
And also exynos version will have wolfson audio DAC in it , so exynos defeats sd in audio performance
Sent from my GT-P3100 using XDA Premium 4 mobile app
I would welcome an LTE model on Verizon except it will be limited to 16GB of storage and I just won't accept that. You need 32GB or higher internal storage for apps not medial content that is what the microsd is for.
Phone 2G
LuckyStrike88 said:
Will you be able to use this device as a phone? As in does it have a dialer that you can use with a regular SIM like the old one?
Click to expand...
Click to collapse
I think I read that the phone version (which won't be sold by US cellular companies) is limited to 2G. I would love to hear differently.
RaptorMD said:
I would welcome an LTE model on Verizon except it will be limited to 16GB of storage and I just won't accept that. You need 32GB or higher internal storage for apps not medial content that is what the microsd is for.
Click to expand...
Click to collapse
Whoa..that's completely unacceptable (I'm Verizon). Agree on 32 min. Where can I find spex on Verizon's version?
The spec sheet Mashari_F posted helps differentiate among variants but I'm still not clear.
I'll likely have to wait until later in Nov. for my own good ... see how users are feeling about SD VS. OCTA and see what Verizon puts out vs. Wifi.
Tx!
16GB should be fine, I have tons of apps and games installed on my 16GB old note 10
and still have 4-5GB left, if you are planning on installing huge games like nova 3 (I think it takes up 2.2GB) then you might want to consider the 32GB instead
if you root and have a nice size microsd handy, you really wont have to worry about it
So, if you want the best CPU, you have to buy the version with a cell radio in it? That's kinda dorky, since I can just tether to my phone. But I guess if I want the best CPU I gotta buy the 4G (that I won't use).
NaxIonz said:
So, if you want the best CPU, you have to buy the version with a cell radio in it? That's kinda dorky, since I can just tether to my phone. But I guess if I want the best CPU I gotta buy the 4G (that I won't use).
Click to expand...
Click to collapse
Yes, sure.
Because Snap800 support LTE.
And Snap800 version will be better then Exynos
See the S4, the S600 have more support that Exynos Octa...
We dont know which is more powerful yet, this is the new octa core, not the old one
Wait for benchmarks from the new one to see
Joey22688 said:
We dont know which is more powerful yet, this is the new octa core, not the old one
Wait for benchmarks from the new one to see
Click to expand...
Click to collapse
lol, benchmarks...
I won't see bench, because they don't have a lot of sense.
Snap800 will be supportated because devs know the architecture and they always have the source code...
Isn't the same for the Exynos...
It's like S3 for the Cyano
So, ATM, Snap > Exynos
Guich said:
lol, benchmarks...
I won't see bench, because they don't have a lot of sense.
Snap800 will be supportated because devs know the architecture and they always have the source code...
Isn't the same for the Exynos...
It's like S3 for the Cyano
So, ATM, Snap > Exynos
Click to expand...
Click to collapse
Samsung released the kernel source for the Exynos version a few days ago (sammobile.com/2013/09/20/samsung-releases-kernel-source-for-galaxy-note-10-1-2014-edition). I'm not very familiar with all the lingo, so please enlighten me: Is this not (all) the source code that devs need to do their thing?
Can someone explain why someone buys an expensive note 10.1 only to install cyanogenmod and lose all the exclusive features? (Spen, multiwindow, ir blaster, and some other things)
Just buy a nexus 10 or wait for the new one if you are going to do that
The_Maverick said:
Samsung released the kernel source for the Exynos version a few days ago (sammobile.com/2013/09/20/samsung-releases-kernel-source-for-galaxy-note-10-1-2014-edition). I'm not very familiar with all the lingo, so please enlighten me: Is this not (all) the source code that devs need to do their thing?
Click to expand...
Click to collapse
The big problem there isn't the source code, this was an older problem, but the structure of the partition and the core.
If a dev will build a kernel, the source are here.
But, trust me, snap have a source code more easy, it's quadcore, and we know all about this.
Joey22688 said:
Can someone explain why someone buys an expensive note 10.1 only to install cyanogenmod and lose all the exclusive features? (Spen, multiwindow, ir blaster, and some other things)
Just buy a nexus 10 or wait for the new one if you are going to do that
Click to expand...
Click to collapse
No sense.
There isn't any sense...
In fact, i will buy it only for the feature of the tab, not for the Cyano rom
Maybe, someone, will work on a tweaked rom Touchwiz based.

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