# ckTESTBTC Bitcoin testnet canister (update\_balance) Error **URL:** \ **Category:** Developers\ **Created:** [April 25, 2024, 5:06am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997 "2024-04-25T05:06:40Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [April 25, 2024, 5:06am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/1 "2024-04-25T05:06:40Z")
I got an error calling update\_balance:“management call ‘bitcoin\_get\_utxos’ failed: canister error: IC0503: Canister g4xu7-jiaaa-aaaan-aaaaq-cai trapped explicitly: Panicked at ‘Bitcoin API is disabled’, canister/src/lib.rs:237:13” May I ask what causes it? ---
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [April 25, 2024, 6:10am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/2 "2024-04-25T06:10:54Z")
![image](https://us1.discourse-cdn.com/flex023/uploads/dfn/original/3X/0/a/0ad69721a37e2fbb35dae87b66c246d1bffc599c.png) ---
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [April 25, 2024, 7:22am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/4 "2024-04-25T07:22:02Z")
![image](https://us1.discourse-cdn.com/flex023/uploads/dfn/original/3X/c/2/c27d158015a829d2f47e47ed8da1069d86a24787.png) I’m calling canister on the Bitcoin mainnet and it’s working fine 😭 ---
**Author:** ![jennifertran](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/jennifertran/32/11558_2.png) [@jennifertran](https://forum.dfinity.org/u/jennifertran)\ **Post date:** [April 29, 2024, 10:28pm UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/5 "2024-04-29T22:28:41Z")
This is a known issue and will be fixed with an upcoming release. Thank you for the note! ---
**Author:** ![dantol29](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/dantol29/32/20601_2.png) [@dantol29](https://forum.dfinity.org/u/dantol29)\ **Post date:** [September 19, 2024, 11:23am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/6 "2024-09-19T11:23:00Z")
Why do I get the same error? Bitcoin API is disabled ---
**Author:** ![jennifertran](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/jennifertran/32/11558_2.png) [@jennifertran](https://forum.dfinity.org/u/jennifertran)\ **Post date:** [September 19, 2024, 8:22pm UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/7 "2024-09-19T20:22:52Z")
> [@\_Eric](#): > > Bitcoin API is disabled This issue did appear a few months ago but was fixed with a subsequent update. We will report it again, thank you! ---
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [September 20, 2024, 5:53am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/8 "2024-09-20T05:53:01Z")
I have the same situation now. ---
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [September 30, 2024, 6:52am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/9 "2024-09-30T06:52:25Z")
It appears this issue has not been solved yet. Is there an estimated time for it? Our product is affected by it and many of our users complained about it. If there is no plan to solve the issue in near future, please let me know as well so that we can remove the feature related to cktestBTC. Thank you. ---
**Author:** ![jennifertran](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/jennifertran/32/11558_2.png) [@jennifertran](https://forum.dfinity.org/u/jennifertran)\ **Post date:** [September 30, 2024, 12:35pm UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/10 "2024-09-30T12:35:06Z")
I will check back and follow-up! ---
**Author:** ![jennifertran](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/jennifertran/32/11558_2.png) [@jennifertran](https://forum.dfinity.org/u/jennifertran)\ **Post date:** [September 30, 2024, 6:57pm UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/11 "2024-09-30T18:57:40Z")
This is currently a known issue. DFINITY is working on a solution to resync the testnet canister. A governance proposal for the update will be available soon. ---
**Author:** ![jennifertran](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/jennifertran/32/11558_2.png) [@jennifertran](https://forum.dfinity.org/u/jennifertran)\ **Post date:** [October 3, 2024, 7:49pm UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/13 "2024-10-03T19:49:00Z")
Here is an update: > [@Btc testnet disabled?](https://forum.dfinity.org/t/btc-testnet-disabled/35303/5): > > @dantol29 @Buriburizaemon As an update, this is the first out of two proposals that will rebootstrap the Bitcoin testnet canister. You can also view the full process in the proposal: [https://dashboard.internetcomputer.org/proposal/133186](https://dashboard.internetcomputer.org/proposal/133186) ---
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [October 12, 2024, 1:31am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/14 "2024-10-12T01:31:40Z")
Hello, I have noticed that ckTESTBTC still hasn’t returned to normal. Is there any latest news on this? ---
**Author:** ![jennifertran](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/jennifertran/32/11558_2.png) [@jennifertran](https://forum.dfinity.org/u/jennifertran)\ **Post date:** [October 12, 2024, 1:47am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/15 "2024-10-12T01:47:47Z")
The second and final proposal to rebootstrap the Bitcoin canister was executed yesterday: [https://dashboard.internetcomputer.org/proposal/133319](https://dashboard.internetcomputer.org/proposal/133319). I will check to see if there is any other step in the update. What is the error that you are getting? When was the last time that you got the error? ---
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [October 12, 2024, 2:08am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/16 "2024-10-12T02:08:43Z")
![img](https://us1.discourse-cdn.com/flex023/uploads/dfn/original/3X/7/4/74190c29dc484d8fb94ac9926aa00944502dbd9e.jpeg) ---
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [October 12, 2024, 2:10am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/17 "2024-10-12T02:10:24Z")
Just now… 😭 😭 😭 😭 😭 😭 😭 😭 😭 😭 😭 ---
**Author:** ![jennifertran](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/jennifertran/32/11558_2.png) [@jennifertran](https://forum.dfinity.org/u/jennifertran)\ **Post date:** [October 12, 2024, 2:57am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/18 "2024-10-12T02:57:27Z")
Thank you for sending over. Will let the team know and will report back. ---
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [October 12, 2024, 3:01am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/20 "2024-10-12T03:01:48Z")
Okay, thank you for your response. This issue has been going on for almost a month. Many of our users have their testBTC stuck inside, unable to withdraw or bridge… ---
**Author:** ![Manu](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/manu/32/3999_2.png) [@Manu](https://forum.dfinity.org/u/Manu)\ **Post date:** [October 12, 2024, 10:49am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/21 "2024-10-12T10:49:21Z")
The problem is that Bitcoin testnet (testnet3) has been behaving very erratically for a while. In the last month, the block rate of bitcoin testnet is ~50x higher than bitcoin mainnet, with crazy “block storms” where the block rate is even higher. Our bitcoin integration was designed for bitcoin mainnet, but testnet behaves so differently, the bitcoin integration at times can’t keep up with bitcoin testnet. The bitcoin community is discussing this problem and considers making “testnet4” the default new bitcoin testnet. On the ICP side, we have to consider how we move forward. I believe that perhaps there’s more value in switching already to testnet4 rather than sticking with the problematic testnet3. ---
**Author:** ![jennifertran](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/jennifertran/32/11558_2.png) [@jennifertran](https://forum.dfinity.org/u/jennifertran)\ **Post date:** [October 14, 2024, 9:28pm UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/22 "2024-10-14T21:28:53Z")
Hello Eric, Followed up with the team. After the second proposal is executed, the Bitcoin canister still needs to continue to sync as noted in the process here. [https://dashboard.internetcomputer.org/proposal/133308](https://dashboard.internetcomputer.org/proposal/133308) We hope that it will fully sync soon and will update everyone looking to use it as soon as possible once it is. ---
**Author:** ![\_Eric](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/_eric/32/17878_2.png) [@\_Eric](https://forum.dfinity.org/u/_Eric)\ **Post date:** [October 15, 2024, 8:48am UTC](https://forum.dfinity.org/t/cktestbtc-bitcoin-testnet-canister-update-balance-error/29997/23 "2024-10-15T08:48:04Z")
Hello jennifertran, thank you very much! testBTC has finally returned to normal!