karol1241
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Posts posted by karol1241
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Hello,
I'm trying to fix my DNA board locally. I bought BQ76925RGER module from Texas Instruments, which is for 99% broken (showed me random voltage values on both cells when plugged and displayed "Check Battery") and gave to local service center. Unfortunately I came across a dishonest service technician - he told he will do it without any problem and now 2 resistors are missing and 1 is dislocated. At this time device doesn't recongise even voltage delivered by USB port but I'm not sure if it's not caused by not connected balance cable and the pin. He also burnt my screen from the bottom - I think he did it without any knowledge. I will be very thankful if you give me the parameters of parts marked on the attached photo, I want to send it to more experienced technician. I've found also that there's a way to recognise if the IC module is working well by measuring resistance of balance pin number one, but I've found correct values only for DNA200, which has different arragement of the parts.I look forward for any tips which I can share to the next serviceman, especially how to check, if there's any chance to repair it correctly. I've attached photos of my board.
Thank you for help and best regards!
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Solved, bought in a local shop. Thank you for help.
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25 minut temu, dwcraig1 napisał:
They are even more here but in stock:
Too much for me. I can buy it cheaper in local shop.
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Hello, my Hcigar Vt167 got broken (BQ76925 chip, I'm finding a store to buy spare one and a person who will do it) and now I'm thinking about getting Lost Vape Paranormal 250C. Unfortunately, 3 weeks ago it got discontinued from Fasttech or HeavenGifts. I can't buy it from USA's shops because I live in Poland and shipping cost would be bigger than the box's cost. In local shops it's for ~160$ so it's finality regarding 110$ on Fasttech/Aliexpress.
Thank you for help!
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I had a VT200 and I'm looking for a similar mod or if not present new VT200 from any shop.
Yes, I've had an occasion because VT133 got broken, I bought VT167 and sold VT133 as a new past the Evolv warranty repair.
I love VT200, propably I will buy another one, I can see no better DNA200/250 LiPo mods.
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Hello,
I've sold my Hcigar VT200 box which I've been using for about 1,5 year. I was really happy and the only reason for selling was his usage time and expired warranty. I would buy something smiliar to that box - light, well-made and maybe on DNA250 (I've heard that the battery managing chip was improved from DNA200). I switched from VT133 to VT167 too. Are there any alternatives for VT200 or should I buy that one?
Thank you for help and best regards,
Karol.
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Thank you for help, I've noticed that DNA boards prevents from getting more than it's safe by entering max number in Escribe (peak input A).
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Hello,
today I get my new Smok TFv8 tank, and on 0.16ohm coil it should be used with ~100watts on Hcigar Vt167, unfortunatelly on 70w the device shows 21A (on the screen), I have HG2 batteries (they are listed as 20A current max). How to measure real input current (taking into account the serial connection) or just block getting more than 20A from batteries? I don't wanna say goodbye to my hands.Thank you for help!
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I sent my device to Evolv, holding on to get it back. They have the best support I've ever had. Thank you for your help, my problem is solved.
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I will make last try today, it looks just black (I'm not sure but I think it's burned because I can't see any numbers on it). Again voltage with batteries is crazy. BTW I have one more to check - when I'm moving the batteries in case (spring adjusts) voltage dramatically moves - maybe this is brokenChunkyButt200 said:problem is with components so small on the PCB, it becomes VERY difficult for a person to "repair". that's why Evolv doesn't bother to repair most of the sent back boards. they just replace and send a new one in the mail.
what does the BMIC look like after you cleaned it? -
Like I told you sending cost from Poland is really expensive so I decided to see what's wrong with my device.
I saw that the Battery Manage IC was with white powder, also it was a little more black (maybe fired...), I've cleaned it with Isopropyl, and let it dry for 2 hours. Look now at that screenshots (first with battery, second without) http://screenshot.sh/ouTJNZ0ruJGcb http://screenshot.sh/mE72GBVCgx52L
I also attached board picture in attachment, please take a look. The best way for me is to avoid sending it anywhere further than Poland.
Regards -
dwcraig1 said:
You need to RMA the board, it appears there is a problem with the battery management section of the board.
https://helpdesk.evolvapor.com/index.php?a=add&category=1
Is there any way to repair it locally? I bought it in China shop, it would take a long time to get it back. -
Hello, yesterday I noticed that every attempt to put the batteries in makes different percent and voltage - look at this http://screenshot.sh/m9eKws1lOrBvR , real Voltage is 4.06 both, is there any way to repair it?
edit: without batteries (just usb cable) http://screenshot.sh/oB4TpTnNFCeRB -
Seems to be dead battery - second cell dropped from 3.8 to 3.5v during 2second puff. Also it really fast charges - in 10 secs voltage of this cell increased by 0.1 (3.5 -> 3.6V) http://screenshot.sh/odw7F8zkXbiEP
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@up Will try it, thank you. At all I would be sad with broken battery past half a year non-hardcore using (max 60watts..).
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Hello everyone, since two weeks I noticed the strange thing in my VT200. In the first week With 40% Battery (capacity in escribe 11wh, cuttoff voltage 3.06v) of 60w was dropping to 40W (TC was off). From two days started to happen already at 65%, I've updated box to the newest soft 08/08/2016 Escribe 1.2 SP3. It happens even Escribe shows every cell voltage at 3.8V, now from 46watts dropping to 30 at 65% battery. After re-updating I had a bug - battery percentage was 7%, after re-uploading battery curve backed to normal 67%. I don't know what's happening - box serial 193xx, using from 2015 April.
Thank you for your help and greetings.
Need your help with Hcigar VT167 repair (DNA250)
in General Discussion
Posted
I can't believe my eyes... Asked Evolv support for the datasheet but they want to replace the board for me. That's why DNA's will be the best for a long time.