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[Q] Desire Z stuck at boot. Solved for a while. Stuck again!

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demkantor
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What happened after the flash?

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ctomk1482
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Quote:
Originally Posted by demkantor View Post
What happened after the flash?

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Well, you sent me some link and addressed me to the 30th post, but the link was incomplete.
 
demkantor
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http://forum.xda-developers.com/show...php?t=1728208y


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ctomk1482
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Quote:
Originally Posted by demkantor View Post
http://forum.xda-developers.com/show...php?t=1728208y


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Hi.

Code:
Parsing...[SD ZIP]
[ 1 ] RECOVERY
[ 2 ] SPLASH1
[ 3 ] TP
[ 4 ] TP
[ 5 ] BOOTLOADER
[ 6 ] RADIO_V2
[ 7 ] RADIO_CUST
Answered Yes to "Do you want to start update?".

Frozen as soon as it begins the update:
Code:
[ 5 ] BOOTLOADER        Updating
.
 
demkantor
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Emmc is bad, need to replace motherboard, sorry

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ctomk1482
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Quote:
Originally Posted by demkantor View Post
Emmc is bad, need to replace motherboard, sorry

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Well, I've already contacted HTC for this. I have no idea about how much would it cost, but they can do it.

Anyway, taking advantage from your expertise here, do you think if in these cases they replace just the chip or the whole motherboard?

Also, -and I prefer to ask it here first before showing myself as a daring retard-.... This device is the euro version...do you think it makes sense if I request a change to the usa version? (I'm talking about the HSDPA/3G frequencies here). I'm pretty sure this can be done only at hardware level (probably a single chip replacement?), but if they replace the motherboard, I don't see how difficult would be just "putting this instead of this one", considering that we don't use the euro frequencies here either. Is this a valid request?

Thanks for your help.
 
demkantor
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It will cost more than its worth to have HTC do it, unless somehow you still have a warranty but that would be surprising. Yes the radio bands differ between the desire z and g2, what I would suggest is buying a broken one from eBay for cheap and swap logic boards, if you dig I bet you can find one for 40$ or less which will be much cheaper than sending it to htc

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Alex Mitter
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Buy a new one bro..
 
ctomk1482
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Hello.

I sent my phone to HTC and they replaced the motherboard. The whole cost was still cheaper than buying a new phone, so I went that route.

Since they get the replacements from their available stock, I had not much control on what they were using. So guess what...Samsung eMMC chip again.

Three questions:

1-Is this chip really that bad and I'm condemned?

2-Rooting my phone would give me any options if the same problems happens in a future?

3-Considering that:
a) I have the old motherboard
b) a Sandisk eMMC chip does cost about 10 bucks
c) I know someone with the right tools to replace this chip.
If the same problem happens in a future and I replace the chip myself, should this work immediately of should I have to "prepare" this chip with some special software?


Thanks for all the support given with my issue.
 
demkantor
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The Samsung emmc is prone to failure but that doesn't mean it will die in a week, a month or a year, some have had it work for years
Rooting and true radio s-off is amazing and will help with other problem, just not a fried emmc, not even JTAG can fix this
Soldering a new chip is tricky if you haven't done real fine soldering before, so be careful doing it yourself
Depends how and where you bought the chip, many vision specific ones come preloaded with firmware/software
If it doesn't you will need JTAG equipment to flash it
Hope all goes well for you!

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